views: mac: Fix overlay association with host CefWindow (fixes #3456)

libcef/browser/views/overlay_view_host.cc

@@ -14,11 +14,6 @@
 #include "ui/compositor/compositor.h"
 #include "ui/compositor/layer.h"
 
-#if defined(USE_AURA)
-#include "ui/aura/window.h"
-#include "ui/views/view_constants_aura.h"
-#endif
-
 namespace {
 
 class CefOverlayControllerImpl : public CefOverlayController {
@@ -172,8 +167,7 @@ CefOverlayViewHost::CefOverlayViewHost(CefWindowView* window_view,
                                        cef_docking_mode_t docking_mode)
     : window_view_(window_view), docking_mode_(docking_mode) {}
 
-void CefOverlayViewHost::Init(views::View* widget_view,
-                              CefRefPtr<CefView> view) {
+void CefOverlayViewHost::Init(views::View* host_view, CefRefPtr<CefView> view) {
   DCHECK(view);
 
   // Match the logic in CEF_PANEL_IMPL_D::AddChildView().
@@ -202,10 +196,7 @@ void CefOverlayViewHost::Init(views::View* widget_view,
     widget_->GetCompositor()->SetBackgroundColor(SK_ColorTRANSPARENT);
   }
 
-#if defined(USE_AURA)
-  // See matching logic in view_util::GetWindowFor.
-  widget_->GetNativeView()->SetProperty(views::kHostViewKey, widget_view);
-#endif
+  view_util::SetHostView(widget_.get(), host_view);
 
   if (cef::IsChromeRuntimeEnabled()) {
     // Some attributes associated with a Chrome toolbar are located via the

libcef/browser/views/overlay_view_host.h

@@ -29,9 +29,9 @@ class CefOverlayViewHost : public views::WidgetDelegate,
   CefOverlayViewHost& operator=(const CefOverlayViewHost&) = delete;
 
   // Initializes the CefOverlayViewHost. This creates the Widget that |view|
-  // paints into. |host_view| is the view whose position in the |window_view_|
-  // view hierarchy determines the z-order of the widget relative to views with
-  // layers and views with associated NativeViews.
+  // paints into. On Aura platforms, |host_view| is the view whose position in
+  // the |window_view_| view hierarchy determines the z-order of the widget
+  // relative to views with layers and views with associated NativeViews.
   void Init(views::View* host_view, CefRefPtr<CefView> view);
 
   void Destroy();

libcef/browser/views/view_util.cc

@@ -20,11 +20,6 @@
 #include "ui/display/win/screen_win.h"
 #endif
 
-#if defined(USE_AURA)
-#include "ui/aura/window.h"
-#include "ui/views/view_constants_aura.h"
-#endif
-
 namespace view_util {
 
 namespace {
@@ -169,17 +164,12 @@ void ResumeOwnership(CefRefPtr<CefView> view) {
 CefRefPtr<CefWindow> GetWindowFor(views::Widget* widget) {
   CefRefPtr<CefWindow> window;
 
-#if defined(USE_AURA)
-  // Retrieve the parent Widget for an overlay.
+  // If |widget| is an overlay, retrieve the host Widget.
   if (widget) {
-    // See matching logic in CefOverlayViewHost::Init.
-    auto widget_view =
-        widget->GetNativeView()->GetProperty(views::kHostViewKey);
-    if (widget_view) {
+    if (auto widget_view = GetHostView(widget)) {
       widget = widget_view->GetWidget();
     }
   }
-#endif  // defined(USE_AURA)
 
   if (widget) {
     // The views::WidgetDelegate should be a CefWindowView and |content_view|

libcef/browser/views/view_util.h

@@ -22,6 +22,7 @@ class Point;
 
 namespace views {
 class NativeWidget;
+class View;
 class Widget;
 namespace internal {
 class NativeWidgetDelegate;
@@ -152,6 +153,14 @@ views::NativeWidget* CreateNativeWidget(
     CefRefPtr<CefWindow> window,
     CefWindowDelegate* window_delegate);
 
+// Called from CefOverlayViewHost::Init to associate |host_view| with |widget|.
+// This is necessary for GetWindowFor() to correctly return the CefWindow
+// associated with the host Widget. On Aura platforms, |host_view| is the view
+// whose position in the view hierarchy determines the z-order of the widget
+// relative to views with layers and views with associated NativeViews.
+void SetHostView(views::Widget* widget, views::View* host_view);
+views::View* GetHostView(views::Widget* widget);
+
 }  // namespace view_util
 
 #endif  // CEF_LIBCEF_BROWSER_VIEWS_VIEW_UTIL_H_

libcef/browser/views/view_util_aura.cc

@@ -6,6 +6,7 @@
 
 #include "ui/aura/window.h"
 #include "ui/aura/window_tree_host.h"
+#include "ui/views/view_constants_aura.h"
 #include "ui/views/widget/native_widget.h"
 #include "ui/views/widget/native_widget_delegate.h"
 #include "ui/views/widget/widget.h"
@@ -49,4 +50,12 @@ views::NativeWidget* CreateNativeWidget(
   return nullptr;
 }
 
+void SetHostView(views::Widget* widget, views::View* host_view) {
+  widget->GetNativeView()->SetProperty(views::kHostViewKey, host_view);
+}
+
+views::View* GetHostView(views::Widget* widget) {
+  return widget->GetNativeView()->GetProperty(views::kHostViewKey);
+}
+
 }  // namespace view_util

libcef/browser/views/view_util_mac.mm

@@ -13,6 +13,12 @@
 
 namespace view_util {
 
+namespace {
+
+constexpr char kNativeHostViewKey[] = "CefNativeHostViewKey";
+
+}  // namespace
+
 gfx::NativeWindow GetNativeWindow(views::Widget* widget) {
   if (widget) {
     return widget->GetNativeWindow();
@@ -51,4 +57,14 @@ views::NativeWidget* CreateNativeWidget(
     CefWindowDelegate* window_delegate) {
   return new CefNativeWidgetMac(delegate, window, window_delegate);
 }
+
+void SetHostView(views::Widget* widget, views::View* host_view) {
+  widget->SetNativeWindowProperty(kNativeHostViewKey, host_view);
+}
+
+views::View* GetHostView(views::Widget* widget) {
+  return static_cast<views::View*>(
+      widget->GetNativeWindowProperty(kNativeHostViewKey));
+}
+
 }  // namespace view_util