Add new CanZoom/Zoom API (fixes #3284)

Add a simpler CanZoom/Zoom API as an alternative to the more error-prone
SetZoomLevel/GetZoomLevel API. Both APIs are now implemented for both runtimes.
With the Chrome runtime a zoom notification bubble will be displayed unless
CefBrowserSettings.chrome_zoom_bubble is set to STATE_DISABLED.

To test:
- Run cefclient and select zoom entries from the Tests menu.
- chrome: Run cefclient with `--hide-chrome-bubbles` command-line flag to hide
  the zoom notification bubble.

include/capi/cef_browser_capi.h

@@ -33,7 +33,7 @@
 // by hand. See the translator.README.txt file in the tools directory for
 // more information.
 //
-// $hash=683d7bff8da04826eee83c7e23cf9c5a701ae265$
+// $hash=db4fce1215cb4f69346ef2d048974ba34187b2b1$
 //
 
 #ifndef CEF_INCLUDE_CAPI_CEF_BROWSER_CAPI_H_
@@ -365,16 +365,39 @@ typedef struct _cef_browser_host_t {
       struct _cef_browser_host_t* self);
 
   ///
-  /// Get the current zoom level. The default zoom level is 0.0. This function
-  /// can only be called on the UI thread.
+  /// Returns true (1) if this browser can execute the specified zoom command.
+  /// This function can only be called on the UI thread.
+  ///
+  int(CEF_CALLBACK* can_zoom)(struct _cef_browser_host_t* self,
+                              cef_zoom_command_t command);
+
+  ///
+  /// Execute a zoom command in this browser. If called on the UI thread the
+  /// change will be applied immediately. Otherwise, the change will be applied
+  /// asynchronously on the UI thread.
+  ///
+  void(CEF_CALLBACK* zoom)(struct _cef_browser_host_t* self,
+                           cef_zoom_command_t command);
+
+  ///
+  /// Get the default zoom level. This value will be 0.0 by default but can be
+  /// configured with the Chrome runtime. This function can only be called on
+  /// the UI thread.
+  ///
+  double(CEF_CALLBACK* get_default_zoom_level)(
+      struct _cef_browser_host_t* self);
+
+  ///
+  /// Get the current zoom level. This function can only be called on the UI
+  /// thread.
   ///
   double(CEF_CALLBACK* get_zoom_level)(struct _cef_browser_host_t* self);
 
   ///
   /// Change the zoom level to the specified value. Specify 0.0 to reset the
-  /// zoom level. If called on the UI thread the change will be applied
-  /// immediately. Otherwise, the change will be applied asynchronously on the
-  /// UI thread.
+  /// zoom level to the default. If called on the UI thread the change will be
+  /// applied immediately. Otherwise, the change will be applied asynchronously
+  /// on the UI thread.
   ///
   void(CEF_CALLBACK* set_zoom_level)(struct _cef_browser_host_t* self,
                                      double zoomLevel);

include/cef_api_hash.h

@@ -42,13 +42,13 @@
 // way that may cause binary incompatibility with other builds. The universal
 // hash value will change if any platform is affected whereas the platform hash
 // values will change only if that particular platform is affected.
-#define CEF_API_HASH_UNIVERSAL "fb95812349ecedc56374e2d195b4af712f6f9ab3"
+#define CEF_API_HASH_UNIVERSAL "abeac9ee5411570f5e39d9242cba575a19439f86"
 #if defined(OS_WIN)
-#define CEF_API_HASH_PLATFORM "4b12d27bf02871c32719580c1be18d686e20bc84"
+#define CEF_API_HASH_PLATFORM "85fba672bea98e3687ccfc28c4a509ca70240990"
 #elif defined(OS_MAC)
-#define CEF_API_HASH_PLATFORM "e6b30ef107ccb6ba9af40bd6498ad4cef247a171"
+#define CEF_API_HASH_PLATFORM "3c960598536b6e112d3857d19d01f05e49474f86"
 #elif defined(OS_LINUX)
-#define CEF_API_HASH_PLATFORM "a4ec73cc821ea2d1681c7f8271f0a7d3e3cea33a"
+#define CEF_API_HASH_PLATFORM "821845ef5f7ea8618f7425a4096702205f4b346b"
 #endif
 
 #ifdef __cplusplus

include/cef_browser.h

@@ -396,17 +396,40 @@ class CefBrowserHost : public virtual CefBaseRefCounted {
   virtual CefRefPtr<CefRequestContext> GetRequestContext() = 0;
 
   ///
-  /// Get the current zoom level. The default zoom level is 0.0. This method can
-  /// only be called on the UI thread.
+  /// Returns true if this browser can execute the specified zoom command. This
+  /// method can only be called on the UI thread.
+  ///
+  /*--cef()--*/
+  virtual bool CanZoom(cef_zoom_command_t command) = 0;
+
+  ///
+  /// Execute a zoom command in this browser. If called on the UI thread the
+  /// change will be applied immediately. Otherwise, the change will be applied
+  /// asynchronously on the UI thread.
+  ///
+  /*--cef()--*/
+  virtual void Zoom(cef_zoom_command_t command) = 0;
+
+  ///
+  /// Get the default zoom level. This value will be 0.0 by default but can be
+  /// configured with the Chrome runtime. This method can only be called on the
+  /// UI thread.
+  ///
+  /*--cef()--*/
+  virtual double GetDefaultZoomLevel() = 0;
+
+  ///
+  /// Get the current zoom level. This method can only be called on the UI
+  /// thread.
   ///
   /*--cef()--*/
   virtual double GetZoomLevel() = 0;
 
   ///
   /// Change the zoom level to the specified value. Specify 0.0 to reset the
-  /// zoom level. If called on the UI thread the change will be applied
-  /// immediately. Otherwise, the change will be applied asynchronously on the
-  /// UI thread.
+  /// zoom level to the default. If called on the UI thread the change will be
+  /// applied immediately. Otherwise, the change will be applied asynchronously
+  /// on the UI thread.
   ///
   /*--cef()--*/
   virtual void SetZoomLevel(double zoomLevel) = 0;

include/internal/cef_types.h

@@ -687,6 +687,12 @@ typedef struct _cef_browser_settings_t {
   /// https://www.chromium.org/user-experience/status-bubble/
   ///
   cef_state_t chrome_status_bubble;
+
+  ///
+  /// Controls whether the Chrome zoom bubble will be shown when zooming. Only
+  /// supported with the Chrome runtime.
+  ///
+  cef_state_t chrome_zoom_bubble;
 } cef_browser_settings_t;
 
 ///
@@ -3660,6 +3666,15 @@ typedef enum {
   CEF_GESTURE_COMMAND_FORWARD,
 } cef_gesture_command_t;
 
+///
+/// Specifies the zoom commands supported by CefBrowserHost::Zoom.
+///
+typedef enum {
+  CEF_ZOOM_COMMAND_OUT,
+  CEF_ZOOM_COMMAND_RESET,
+  CEF_ZOOM_COMMAND_IN,
+} cef_zoom_command_t;
+
 #ifdef __cplusplus
 }
 #endif

include/internal/cef_types_wrappers.h

@@ -541,6 +541,7 @@ struct CefBrowserSettingsTraits {
                    &target->accept_language_list, copy);
 
     target->chrome_status_bubble = src->chrome_status_bubble;
+    target->chrome_zoom_bubble = src->chrome_zoom_bubble;
   }
 };
 

libcef/browser/alloy/alloy_browser_host_impl.cc

@@ -34,10 +34,10 @@
 #include "base/functional/callback_helpers.h"
 #include "chrome/browser/file_select_helper.h"
 #include "chrome/browser/picture_in_picture/picture_in_picture_window_manager.h"
+#include "components/zoom/page_zoom.h"
 #include "content/browser/gpu/compositor_util.h"
 #include "content/public/browser/desktop_media_id.h"
 #include "content/public/browser/file_select_listener.h"
-#include "content/public/browser/host_zoom_map.h"
 #include "content/public/browser/keyboard_event_processing_result.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_handle.h"
@@ -330,31 +330,6 @@ CefWindowHandle AlloyBrowserHostImpl::GetOpenerWindowHandle() {
   return opener_;
 }
 
-double AlloyBrowserHostImpl::GetZoomLevel() {
-  // Verify that this method is being called on the UI thread.
-  if (!CEF_CURRENTLY_ON_UIT()) {
-    DCHECK(false) << "called on invalid thread";
-    return 0;
-  }
-
-  if (web_contents()) {
-    return content::HostZoomMap::GetZoomLevel(web_contents());
-  }
-
-  return 0;
-}
-
-void AlloyBrowserHostImpl::SetZoomLevel(double zoomLevel) {
-  if (CEF_CURRENTLY_ON_UIT()) {
-    if (web_contents()) {
-      content::HostZoomMap::SetZoomLevel(web_contents(), zoomLevel);
-    }
-  } else {
-    CEF_POST_TASK(CEF_UIT, base::BindOnce(&AlloyBrowserHostImpl::SetZoomLevel,
-                                          this, zoomLevel));
-  }
-}
-
 void AlloyBrowserHostImpl::Find(const CefString& searchText,
                                 bool forward,
                                 bool matchCase,
@@ -1118,6 +1093,11 @@ bool AlloyBrowserHostImpl::DidAddMessageToConsole(
                                                     line_no, source_id);
 }
 
+void AlloyBrowserHostImpl::ContentsZoomChange(bool zoom_in) {
+  zoom::PageZoom::Zoom(
+      web_contents(), zoom_in ? content::PAGE_ZOOM_IN : content::PAGE_ZOOM_OUT);
+}
+
 void AlloyBrowserHostImpl::BeforeUnloadFired(content::WebContents* source,
                                              bool proceed,
                                              bool* proceed_to_fire_unload) {

libcef/browser/alloy/alloy_browser_host_impl.h

@@ -80,8 +80,6 @@ class AlloyBrowserHostImpl : public CefBrowserHostBase,
   bool TryCloseBrowser() override;
   CefWindowHandle GetWindowHandle() override;
   CefWindowHandle GetOpenerWindowHandle() override;
-  double GetZoomLevel() override;
-  void SetZoomLevel(double zoomLevel) override;
   void Find(const CefString& searchText,
             bool forward,
             bool matchCase,
@@ -204,6 +202,7 @@ class AlloyBrowserHostImpl : public CefBrowserHostBase,
                               const std::u16string& message,
                               int32_t line_no,
                               const std::u16string& source_id) override;
+  void ContentsZoomChange(bool zoom_in) override;
   void BeforeUnloadFired(content::WebContents* source,
                          bool proceed,
                          bool* proceed_to_fire_unload) override;

libcef/browser/alloy/browser_platform_delegate_alloy.cc

@@ -171,11 +171,7 @@ void CefBrowserPlatformDelegateAlloy::BrowserCreated(
   permissions::PermissionRequestManager::CreateForWebContents(web_contents_);
   PrefsTabHelper::CreateForWebContents(web_contents_);
   printing::PrintViewManager::CreateForWebContents(web_contents_);
-
-  if (extensions::ExtensionsEnabled()) {
-    // Used by the tabs extension API.
-    zoom::ZoomController::CreateForWebContents(web_contents_);
-  }
+  zoom::ZoomController::CreateForWebContents(web_contents_);
 
   javascript_dialogs::TabModalDialogManager::CreateForWebContents(
       web_contents_,

libcef/browser/browser_host_base.cc

@@ -20,8 +20,10 @@
 #include "chrome/browser/platform_util.h"
 #include "chrome/browser/spellchecker/spellcheck_factory.h"
 #include "chrome/browser/spellchecker/spellcheck_service.h"
+#include "chrome/browser/ui/browser_commands.cc"
 #include "components/favicon/core/favicon_url.h"
 #include "components/spellcheck/common/spellcheck_features.h"
+#include "components/zoom/page_zoom.h"
 #include "content/browser/renderer_host/render_frame_host_impl.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/download_manager.h"
@@ -236,6 +238,109 @@ CefRefPtr<CefRequestContext> CefBrowserHostBase::GetRequestContext() {
   return request_context_;
 }
 
+bool CefBrowserHostBase::CanZoom(cef_zoom_command_t command) {
+  // Verify that this method is being called on the UI thread.
+  if (!CEF_CURRENTLY_ON_UIT()) {
+    DCHECK(false) << "called on invalid thread";
+    return false;
+  }
+
+  if (auto web_contents = GetWebContents()) {
+    switch (command) {
+      case CEF_ZOOM_COMMAND_OUT:
+        return chrome::CanZoomOut(web_contents);
+      case CEF_ZOOM_COMMAND_RESET:
+        return chrome::CanResetZoom(web_contents);
+      case CEF_ZOOM_COMMAND_IN:
+        return chrome::CanZoomIn(web_contents);
+    }
+  }
+
+  return false;
+}
+
+void CefBrowserHostBase::Zoom(cef_zoom_command_t command) {
+  if (!CEF_CURRENTLY_ON_UIT()) {
+    CEF_POST_TASK(CEF_UIT,
+                  base::BindOnce(&CefBrowserHostBase::Zoom, this, command));
+    return;
+  }
+
+  if (auto web_contents = GetWebContents()) {
+    const content::PageZoom page_zoom = [command]() {
+      switch (command) {
+        case CEF_ZOOM_COMMAND_OUT:
+          return content::PAGE_ZOOM_OUT;
+        case CEF_ZOOM_COMMAND_RESET:
+          return content::PAGE_ZOOM_RESET;
+        case CEF_ZOOM_COMMAND_IN:
+          return content::PAGE_ZOOM_IN;
+      }
+    }();
+
+    // Same implementation as chrome::Zoom(), but explicitly specifying the
+    // WebContents.
+    zoom::PageZoom::Zoom(web_contents, page_zoom);
+  }
+}
+
+double CefBrowserHostBase::GetDefaultZoomLevel() {
+  // Verify that this method is being called on the UI thread.
+  if (!CEF_CURRENTLY_ON_UIT()) {
+    DCHECK(false) << "called on invalid thread";
+    return 0.0;
+  }
+
+  if (auto web_contents = GetWebContents()) {
+    zoom::ZoomController* zoom_controller =
+        zoom::ZoomController::FromWebContents(web_contents);
+    if (zoom_controller) {
+      return zoom_controller->GetDefaultZoomLevel();
+    }
+  }
+
+  return 0.0;
+}
+
+double CefBrowserHostBase::GetZoomLevel() {
+  // Verify that this method is being called on the UI thread.
+  if (!CEF_CURRENTLY_ON_UIT()) {
+    DCHECK(false) << "called on invalid thread";
+    return 0.0;
+  }
+
+  if (auto web_contents = GetWebContents()) {
+    zoom::ZoomController* zoom_controller =
+        zoom::ZoomController::FromWebContents(web_contents);
+    if (zoom_controller) {
+      return zoom_controller->GetZoomLevel();
+    }
+  }
+
+  return 0.0;
+}
+
+void CefBrowserHostBase::SetZoomLevel(double zoomLevel) {
+  if (!CEF_CURRENTLY_ON_UIT()) {
+    CEF_POST_TASK(CEF_UIT, base::BindOnce(&CefBrowserHostBase::SetZoomLevel,
+                                          this, zoomLevel));
+    return;
+  }
+
+  if (auto web_contents = GetWebContents()) {
+    zoom::ZoomController* zoom_controller =
+        zoom::ZoomController::FromWebContents(web_contents);
+    if (zoom_controller) {
+      if (zoomLevel == 0.0) {
+        // Same logic as PageZoom::Zoom(PAGE_ZOOM_RESET).
+        zoomLevel = zoom_controller->GetDefaultZoomLevel();
+        web_contents->SetPageScale(1.f);
+      }
+      zoom_controller->SetZoomLevel(zoomLevel);
+    }
+  }
+}
+
 bool CefBrowserHostBase::HasView() {
   return is_views_hosted_;
 }

libcef/browser/browser_host_base.h

@@ -169,6 +169,11 @@ class CefBrowserHostBase : public CefBrowserHost,
   CefRefPtr<CefBrowser> GetBrowser() override;
   CefRefPtr<CefClient> GetClient() override;
   CefRefPtr<CefRequestContext> GetRequestContext() override;
+  bool CanZoom(cef_zoom_command_t command) override;
+  void Zoom(cef_zoom_command_t command) override;
+  double GetDefaultZoomLevel() override;
+  double GetZoomLevel() override;
+  void SetZoomLevel(double zoomLevel) override;
   bool HasView() override;
   void SetFocus(bool focus) override;
   void RunFileDialog(FileDialogMode mode,

libcef/browser/chrome/chrome_browser_host_impl.cc

@@ -179,15 +179,6 @@ CefWindowHandle ChromeBrowserHostImpl::GetOpenerWindowHandle() {
   return kNullWindowHandle;
 }
 
-double ChromeBrowserHostImpl::GetZoomLevel() {
-  NOTIMPLEMENTED();
-  return 0.0;
-}
-
-void ChromeBrowserHostImpl::SetZoomLevel(double zoomLevel) {
-  NOTIMPLEMENTED();
-}
-
 void ChromeBrowserHostImpl::Find(const CefString& searchText,
                                  bool forward,
                                  bool matchCase,

libcef/browser/chrome/chrome_browser_host_impl.h

@@ -67,8 +67,6 @@ class ChromeBrowserHostImpl : public CefBrowserHostBase {
   bool TryCloseBrowser() override;
   CefWindowHandle GetWindowHandle() override;
   CefWindowHandle GetOpenerWindowHandle() override;
-  double GetZoomLevel() override;
-  void SetZoomLevel(double zoomLevel) override;
   void Find(const CefString& searchText,
             bool forward,
             bool matchCase,

libcef/browser/chrome/views/browser_platform_delegate_chrome_views.cc

@@ -7,7 +7,9 @@
 #include "include/views/cef_window.h"
 #include "libcef/browser/views/window_impl.h"
 
+#include "chrome/browser/devtools/devtools_window.h"
 #include "chrome/browser/ui/browser.h"
+#include "components/zoom/zoom_controller.h"
 #include "ui/views/widget/widget.h"
 
 namespace {
@@ -77,8 +79,30 @@ void CefBrowserPlatformDelegateChromeViews::BrowserCreated(
 }
 
 void CefBrowserPlatformDelegateChromeViews::NotifyBrowserCreated() {
-  if (browser_view_->delegate()) {
-    browser_view_->delegate()->OnBrowserCreated(browser_view_, browser_);
+  if (auto delegate = browser_view_->delegate()) {
+    delegate->OnBrowserCreated(browser_view_, browser_);
+
+    // DevTools windows hide the notification bubble by default. However, we
+    // don't currently have the ability to intercept WebContents creation via
+    // DevToolsWindow::Create(), so |show_by_default| will always be true here.
+    const bool show_by_default =
+        !DevToolsWindow::IsDevToolsWindow(web_contents_);
+
+    bool show_zoom_bubble = show_by_default;
+    const auto& state = browser_->settings().chrome_zoom_bubble;
+    if (show_by_default && state == STATE_DISABLED) {
+      show_zoom_bubble = false;
+    } else if (!show_by_default && state == STATE_ENABLED) {
+      show_zoom_bubble = true;
+    }
+
+    if (show_zoom_bubble != show_by_default) {
+      // We may be called before TabHelpers::AttachTabHelpers(), so create
+      // the ZoomController if necessary.
+      zoom::ZoomController::CreateForWebContents(web_contents_);
+      zoom::ZoomController::FromWebContents(web_contents_)
+          ->SetShowsNotificationBubble(show_zoom_bubble);
+    }
   }
 }
 

libcef_dll/cpptoc/browser_host_cpptoc.cc

@@ -9,7 +9,7 @@
 // implementations. See the translator.README.txt file in the tools directory
 // for more information.
 //
-// $hash=6a2ebf843d929371a15e34792b6900c0ab622877$
+// $hash=497607653318fe0245cbe18c8911e39867e16249$
 //
 
 #include "libcef_dll/cpptoc/browser_host_cpptoc.h"
@@ -298,6 +298,57 @@ browser_host_get_request_context(struct _cef_browser_host_t* self) {
   return CefRequestContextCppToC::Wrap(_retval);
 }
 
+int CEF_CALLBACK browser_host_can_zoom(struct _cef_browser_host_t* self,
+                                       cef_zoom_command_t command) {
+  shutdown_checker::AssertNotShutdown();
+
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  DCHECK(self);
+  if (!self) {
+    return 0;
+  }
+
+  // Execute
+  bool _retval = CefBrowserHostCppToC::Get(self)->CanZoom(command);
+
+  // Return type: bool
+  return _retval;
+}
+
+void CEF_CALLBACK browser_host_zoom(struct _cef_browser_host_t* self,
+                                    cef_zoom_command_t command) {
+  shutdown_checker::AssertNotShutdown();
+
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  DCHECK(self);
+  if (!self) {
+    return;
+  }
+
+  // Execute
+  CefBrowserHostCppToC::Get(self)->Zoom(command);
+}
+
+double CEF_CALLBACK
+browser_host_get_default_zoom_level(struct _cef_browser_host_t* self) {
+  shutdown_checker::AssertNotShutdown();
+
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  DCHECK(self);
+  if (!self) {
+    return 0;
+  }
+
+  // Execute
+  double _retval = CefBrowserHostCppToC::Get(self)->GetDefaultZoomLevel();
+
+  // Return type: simple
+  return _retval;
+}
+
 double CEF_CALLBACK
 browser_host_get_zoom_level(struct _cef_browser_host_t* self) {
   shutdown_checker::AssertNotShutdown();
@@ -1398,6 +1449,9 @@ CefBrowserHostCppToC::CefBrowserHostCppToC() {
   GetStruct()->has_view = browser_host_has_view;
   GetStruct()->get_client = browser_host_get_client;
   GetStruct()->get_request_context = browser_host_get_request_context;
+  GetStruct()->can_zoom = browser_host_can_zoom;
+  GetStruct()->zoom = browser_host_zoom;
+  GetStruct()->get_default_zoom_level = browser_host_get_default_zoom_level;
   GetStruct()->get_zoom_level = browser_host_get_zoom_level;
   GetStruct()->set_zoom_level = browser_host_set_zoom_level;
   GetStruct()->run_file_dialog = browser_host_run_file_dialog;

libcef_dll/ctocpp/browser_host_ctocpp.cc

@@ -9,7 +9,7 @@
 // implementations. See the translator.README.txt file in the tools directory
 // for more information.
 //
-// $hash=02a6c45f14489fd5548eb61210ba453de05bcd2d$
+// $hash=cd4e4aa1670f0c887090e23f5e7e3a01e5de9d13$
 //
 
 #include "libcef_dll/ctocpp/browser_host_ctocpp.h"
@@ -234,6 +234,56 @@ CefRefPtr<CefRequestContext> CefBrowserHostCToCpp::GetRequestContext() {
   return CefRequestContextCToCpp::Wrap(_retval);
 }
 
+NO_SANITIZE("cfi-icall")
+bool CefBrowserHostCToCpp::CanZoom(cef_zoom_command_t command) {
+  shutdown_checker::AssertNotShutdown();
+
+  cef_browser_host_t* _struct = GetStruct();
+  if (CEF_MEMBER_MISSING(_struct, can_zoom)) {
+    return false;
+  }
+
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  // Execute
+  int _retval = _struct->can_zoom(_struct, command);
+
+  // Return type: bool
+  return _retval ? true : false;
+}
+
+NO_SANITIZE("cfi-icall")
+void CefBrowserHostCToCpp::Zoom(cef_zoom_command_t command) {
+  shutdown_checker::AssertNotShutdown();
+
+  cef_browser_host_t* _struct = GetStruct();
+  if (CEF_MEMBER_MISSING(_struct, zoom)) {
+    return;
+  }
+
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  // Execute
+  _struct->zoom(_struct, command);
+}
+
+NO_SANITIZE("cfi-icall") double CefBrowserHostCToCpp::GetDefaultZoomLevel() {
+  shutdown_checker::AssertNotShutdown();
+
+  cef_browser_host_t* _struct = GetStruct();
+  if (CEF_MEMBER_MISSING(_struct, get_default_zoom_level)) {
+    return 0;
+  }
+
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  // Execute
+  double _retval = _struct->get_default_zoom_level(_struct);
+
+  // Return type: simple
+  return _retval;
+}
+
 NO_SANITIZE("cfi-icall") double CefBrowserHostCToCpp::GetZoomLevel() {
   shutdown_checker::AssertNotShutdown();
 

libcef_dll/ctocpp/browser_host_ctocpp.h

@@ -9,7 +9,7 @@
 // implementations. See the translator.README.txt file in the tools directory
 // for more information.
 //
-// $hash=4700b3b409abf624334f9f6ecf9c1c20131e4849$
+// $hash=b4e11c91197cd5d6ccbe3a0d96aaae3792a6e05c$
 //
 
 #ifndef CEF_LIBCEF_DLL_CTOCPP_BROWSER_HOST_CTOCPP_H_
@@ -46,6 +46,9 @@ class CefBrowserHostCToCpp : public CefCToCppRefCounted<CefBrowserHostCToCpp,
   bool HasView() override;
   CefRefPtr<CefClient> GetClient() override;
   CefRefPtr<CefRequestContext> GetRequestContext() override;
+  bool CanZoom(cef_zoom_command_t command) override;
+  void Zoom(cef_zoom_command_t command) override;
+  double GetDefaultZoomLevel() override;
   double GetZoomLevel() override;
   void SetZoomLevel(double zoomLevel) override;
   void RunFileDialog(FileDialogMode mode,

tests/cefclient/browser/main_context_impl.cc

@@ -224,8 +224,9 @@ void MainContextImpl::PopulateBrowserSettings(CefBrowserSettings* settings) {
   }
 
   if (use_chrome_runtime_ &&
-      command_line_->HasSwitch(switches::kHideChromeStatusBubble)) {
+      command_line_->HasSwitch(switches::kHideChromeBubbles)) {
     settings->chrome_status_bubble = STATE_DISABLED;
+    settings->chrome_zoom_bubble = STATE_DISABLED;
   }
 }
 

tests/cefclient/browser/test_runner.cc

@@ -160,16 +160,6 @@ void RunDialogWindowTest(CefRefPtr<CefBrowser> browser) {
       std::move(config));
 }
 
-void ModifyZoom(CefRefPtr<CefBrowser> browser, double delta) {
-  if (!CefCurrentlyOn(TID_UI)) {
-    // Execute on the UI thread.
-    CefPostTask(TID_UI, base::BindOnce(&ModifyZoom, browser, delta));
-    return;
-  }
-
-  browser->GetHost()->SetZoomLevel(browser->GetHost()->GetZoomLevel() + delta);
-}
-
 const char kPrompt[] = "Prompt.";
 const char kPromptFPS[] = "FPS";
 const char kPromptDSF[] = "DSF";
@@ -569,13 +559,13 @@ void RunTest(CefRefPtr<CefBrowser> browser, int id) {
       RunRequestTest(browser);
       break;
     case ID_TESTS_ZOOM_IN:
-      ModifyZoom(browser, 0.5);
+      browser->GetHost()->Zoom(CEF_ZOOM_COMMAND_IN);
       break;
     case ID_TESTS_ZOOM_OUT:
-      ModifyZoom(browser, -0.5);
+      browser->GetHost()->Zoom(CEF_ZOOM_COMMAND_OUT);
       break;
     case ID_TESTS_ZOOM_RESET:
-      browser->GetHost()->SetZoomLevel(0.0);
+      browser->GetHost()->Zoom(CEF_ZOOM_COMMAND_RESET);
       break;
     case ID_TESTS_OSR_FPS:
       PromptFPS(browser);

tests/shared/common/client_switches.cc

@@ -49,7 +49,6 @@ const char kNoActivate[] = "no-activate";
 const char kEnableChromeRuntime[] = "enable-chrome-runtime";
 const char kShowChromeToolbar[] = "show-chrome-toolbar";
 const char kInitialShowState[] = "initial-show-state";
-const char kHideChromeStatusBubble[] = "hide-chrome-status-bubble";
 const char kUseDefaultPopup[] = "use-default-popup";
 const char kUseClientDialogs[] = "use-client-dialogs";
 const char kUseTestHttpServer[] = "use-test-http-server";
@@ -57,6 +56,7 @@ const char kShowWindowButtons[] = "show-window-buttons";
 const char kUseWindowModalDialog[] = "use-window-modal-dialog";
 const char kUseBottomControls[] = "use-bottom-controls";
 const char kHidePipFrame[] = "hide-pip-frame";
+const char kHideChromeBubbles[] = "hide-chrome-bubbles";
 
 }  // namespace switches
 }  // namespace client

tests/shared/common/client_switches.h

@@ -43,7 +43,6 @@ extern const char kNoActivate[];
 extern const char kEnableChromeRuntime[];
 extern const char kShowChromeToolbar[];
 extern const char kInitialShowState[];
-extern const char kHideChromeStatusBubble[];
 extern const char kUseDefaultPopup[];
 extern const char kUseClientDialogs[];
 extern const char kUseTestHttpServer[];
@@ -51,6 +50,7 @@ extern const char kShowWindowButtons[];
 extern const char kUseWindowModalDialog[];
 extern const char kUseBottomControls[];
 extern const char kHidePipFrame[];
+extern const char kHideChromeBubbles[];
 
 }  // namespace switches
 }  // namespace client