cef/patch/patches/mime_handler_view_guest_1565_2727.patch

diff --git content/browser/browser_plugin/browser_plugin_guest.cc content/browser/browser_plugin/browser_plugin_guest.cc
index 6eb21be63dec..8617eff6bfc8 100644
--- content/browser/browser_plugin/browser_plugin_guest.cc
+++ content/browser/browser_plugin/browser_plugin_guest.cc
@@ -820,7 +820,8 @@ void BrowserPluginGuest::OnWillAttachComplete(
         static_cast<WebContentsViewGuest*>(GetWebContents()->GetView());
     if (!web_contents()->GetRenderViewHost()->GetWidget()->GetView()) {
       web_contents_view->CreateViewForWidget(
-          web_contents()->GetRenderViewHost()->GetWidget(), true);
+          web_contents()->GetRenderViewHost()->GetWidget(),
+          embedder_web_contents->GetRenderViewHost()->GetWidget());
     }
   }
 
diff --git content/browser/frame_host/interstitial_page_impl.cc content/browser/frame_host/interstitial_page_impl.cc
index 7bb71f92bb0a..a6b89a831044 100644
--- content/browser/frame_host/interstitial_page_impl.cc
+++ content/browser/frame_host/interstitial_page_impl.cc
@@ -619,7 +619,7 @@ WebContentsView* InterstitialPageImpl::CreateWebContentsView() {
   WebContentsView* wcv =
       static_cast<WebContentsImpl*>(web_contents())->GetView();
   RenderWidgetHostViewBase* view =
-      wcv->CreateViewForWidget(render_view_host_->GetWidget(), false);
+      wcv->CreateViewForWidget(render_view_host_->GetWidget(), nullptr);
   render_view_host_->GetWidget()->SetView(view);
   render_view_host_->GetMainFrame()->AllowBindings(
       BINDINGS_POLICY_DOM_AUTOMATION);
diff --git content/browser/web_contents/web_contents_view.h content/browser/web_contents/web_contents_view.h
index bff5b42b166c..4e21a23e364b 100644
--- content/browser/web_contents/web_contents_view.h
+++ content/browser/web_contents/web_contents_view.h
@@ -23,7 +23,7 @@ struct DropData;
 // The WebContentsView is an interface that is implemented by the platform-
 // dependent web contents views. The WebContents uses this interface to talk to
 // them.
-class WebContentsView {
+class CONTENT_EXPORT WebContentsView {
  public:
   virtual ~WebContentsView() {}
 
@@ -83,13 +83,9 @@ class WebContentsView {
   // Sets up the View that holds the rendered web page, receives messages for
   // it and contains page plugins. The host view should be sized to the current
   // size of the WebContents.
-  //
-  // |is_guest_view_hack| is temporary hack and will be removed once
-  // RenderWidgetHostViewGuest is not dependent on platform view.
-  // TODO(lazyboy): Remove |is_guest_view_hack| once http://crbug.com/330264 is
-  // fixed.
   virtual RenderWidgetHostViewBase* CreateViewForWidget(
-      RenderWidgetHost* render_widget_host, bool is_guest_view_hack) = 0;
+      RenderWidgetHost* render_widget_host,
+      RenderWidgetHost* embedder_render_widget_host) = 0;
 
   // Creates a new View that holds a non-top-level widget and receives messages
   // for it.
diff --git content/browser/web_contents/web_contents_view_aura.cc content/browser/web_contents/web_contents_view_aura.cc
index fbefaf207527..093c9cfa2bd1 100644
--- content/browser/web_contents/web_contents_view_aura.cc
+++ content/browser/web_contents/web_contents_view_aura.cc
@@ -966,7 +966,8 @@ void WebContentsViewAura::CreateView(gfx::NativeView context) {
 }
 
 RenderWidgetHostViewBase* WebContentsViewAura::CreateViewForWidget(
-    RenderWidgetHost* render_widget_host, bool is_guest_view_hack) {
+    RenderWidgetHost* render_widget_host,
+    RenderWidgetHost* embedder_render_widget_host) {
   if (render_widget_host->GetView()) {
     // During testing, the view will already be set up in most cases to the
     // test view, so we don't want to clobber it with a real one. To verify that
@@ -978,6 +979,7 @@ RenderWidgetHostViewBase* WebContentsViewAura::CreateViewForWidget(
         render_widget_host->GetView());
   }
 
+  const bool is_guest_view_hack = !!embedder_render_widget_host;
   RenderWidgetHostViewAura* view =
       g_create_render_widget_host_view
           ? g_create_render_widget_host_view(render_widget_host,
diff --git content/browser/web_contents/web_contents_view_aura.h content/browser/web_contents/web_contents_view_aura.h
index 180f4fa00e46..05ec3dec8331 100644
--- content/browser/web_contents/web_contents_view_aura.h
+++ content/browser/web_contents/web_contents_view_aura.h
@@ -148,7 +148,7 @@ class CONTENT_EXPORT WebContentsViewAura
   void CreateView(gfx::NativeView context) override;
   RenderWidgetHostViewBase* CreateViewForWidget(
       RenderWidgetHost* render_widget_host,
-      bool is_guest_view_hack) override;
+      RenderWidgetHost* embedder_render_widget_host) override;
   RenderWidgetHostViewBase* CreateViewForChildWidget(
       RenderWidgetHost* render_widget_host) override;
   void SetPageTitle(const base::string16& title) override;
diff --git content/browser/web_contents/web_contents_view_child_frame.cc content/browser/web_contents/web_contents_view_child_frame.cc
index a766385cf589..fa6832be0759 100644
--- content/browser/web_contents/web_contents_view_child_frame.cc
+++ content/browser/web_contents/web_contents_view_child_frame.cc
@@ -83,7 +83,7 @@ void WebContentsViewChildFrame::CreateView(gfx::NativeView context) {
 
 RenderWidgetHostViewBase* WebContentsViewChildFrame::CreateViewForWidget(
     RenderWidgetHost* render_widget_host,
-    bool is_guest_view_hack) {
+    RenderWidgetHost* embedder_render_widget_host) {
   return RenderWidgetHostViewChildFrame::Create(render_widget_host);
 }
 
diff --git content/browser/web_contents/web_contents_view_child_frame.h content/browser/web_contents/web_contents_view_child_frame.h
index 412bb35e4b69..2f5f7ac02b20 100644
--- content/browser/web_contents/web_contents_view_child_frame.h
+++ content/browser/web_contents/web_contents_view_child_frame.h
@@ -39,7 +39,7 @@ class WebContentsViewChildFrame : public WebContentsView,
   void CreateView(gfx::NativeView context) override;
   RenderWidgetHostViewBase* CreateViewForWidget(
       RenderWidgetHost* render_widget_host,
-      bool is_guest_view_hack) override;
+      RenderWidgetHost* embedder_render_widget_host) override;
   RenderWidgetHostViewBase* CreateViewForChildWidget(
       RenderWidgetHost* render_widget_host) override;
   void SetPageTitle(const base::string16& title) override;
diff --git content/browser/web_contents/web_contents_view_guest.cc content/browser/web_contents/web_contents_view_guest.cc
index c45581fd22b7..f9507a4e7db5 100644
--- content/browser/web_contents/web_contents_view_guest.cc
+++ content/browser/web_contents/web_contents_view_guest.cc
@@ -68,6 +68,8 @@ gfx::NativeWindow WebContentsViewGuest::GetTopLevelNativeWindow() const {
 
 void WebContentsViewGuest::OnGuestAttached(WebContentsView* parent_view) {
 #if defined(USE_AURA)
+  if (!platform_view_->GetNativeView())
+    return;
   // In aura, ScreenPositionClient doesn't work properly if we do
   // not have the native view associated with this WebContentsViewGuest in the
   // view hierarchy. We add this view as embedder's child here.
@@ -78,6 +80,8 @@ void WebContentsViewGuest::OnGuestAttached(WebContentsView* parent_view) {
 }
 
 void WebContentsViewGuest::OnGuestDetached(WebContentsView* old_parent_view) {
+  if (!platform_view_->GetNativeView())
+    return;
 #if defined(USE_AURA)
   old_parent_view->GetNativeView()->RemoveChild(
       platform_view_->GetNativeView());
@@ -118,7 +122,8 @@ void WebContentsViewGuest::CreateView(gfx::NativeView context) {
 }
 
 RenderWidgetHostViewBase* WebContentsViewGuest::CreateViewForWidget(
-    RenderWidgetHost* render_widget_host, bool is_guest_view_hack) {
+    RenderWidgetHost* render_widget_host,
+    RenderWidgetHost* embedder_render_widget_host) {
   if (render_widget_host->GetView()) {
     // During testing, the view will already be set up in most cases to the
     // test view, so we don't want to clobber it with a real one. To verify that
@@ -130,11 +135,19 @@ RenderWidgetHostViewBase* WebContentsViewGuest::CreateViewForWidget(
         render_widget_host->GetView());
   }
 
+  embedder_render_widget_host =
+      guest_->embedder_web_contents()->GetRenderViewHost()->GetWidget();
   RenderWidgetHostViewBase* platform_widget =
-      platform_view_->CreateViewForWidget(render_widget_host, true);
+      platform_view_->CreateViewForWidget(render_widget_host,
+                                          embedder_render_widget_host);
 
-  return RenderWidgetHostViewGuest::Create(render_widget_host, guest_,
-                                           platform_widget->GetWeakPtr());
+  RenderWidgetHostViewGuest* guest_view =
+      RenderWidgetHostViewGuest::Create(render_widget_host, guest_,
+                                        platform_widget->GetWeakPtr());
+  platform_widget->InitAsGuest(embedder_render_widget_host->GetView(),
+                               guest_view);
+
+  return guest_view;
 }
 
 RenderWidgetHostViewBase* WebContentsViewGuest::CreateViewForChildWidget(
diff --git content/browser/web_contents/web_contents_view_guest.h content/browser/web_contents/web_contents_view_guest.h
index 12aa7cd4799d..bcd4e242c2f7 100644
--- content/browser/web_contents/web_contents_view_guest.h
+++ content/browser/web_contents/web_contents_view_guest.h
@@ -57,7 +57,7 @@ class WebContentsViewGuest : public WebContentsView,
   void CreateView(gfx::NativeView context) override;
   RenderWidgetHostViewBase* CreateViewForWidget(
       RenderWidgetHost* render_widget_host,
-      bool is_guest_view_hack) override;
+      RenderWidgetHost* embedder_render_widget_host) override;
   RenderWidgetHostViewBase* CreateViewForChildWidget(
       RenderWidgetHost* render_widget_host) override;
   void SetPageTitle(const base::string16& title) override;
diff --git content/browser/web_contents/web_contents_view_mac.h content/browser/web_contents/web_contents_view_mac.h
index 6fdec8c0a5e2..f57dc03069a5 100644
--- content/browser/web_contents/web_contents_view_mac.h
+++ content/browser/web_contents/web_contents_view_mac.h
@@ -76,7 +76,7 @@ class WebContentsViewMac : public WebContentsView,
   void CreateView(gfx::NativeView context) override;
   RenderWidgetHostViewBase* CreateViewForWidget(
       RenderWidgetHost* render_widget_host,
-      bool is_guest_view_hack) override;
+      RenderWidgetHost* embedder_render_widget_host) override;
   RenderWidgetHostViewBase* CreateViewForChildWidget(
       RenderWidgetHost* render_widget_host) override;
   void SetPageTitle(const base::string16& title) override;
diff --git content/browser/web_contents/web_contents_view_mac.mm content/browser/web_contents/web_contents_view_mac.mm
index 4721a9b3f511..dfdd46d0c5d2 100644
--- content/browser/web_contents/web_contents_view_mac.mm
+++ content/browser/web_contents/web_contents_view_mac.mm
@@ -326,7 +326,8 @@ void WebContentsViewMac::CreateView(gfx::NativeView context) {
 }
 
 RenderWidgetHostViewBase* WebContentsViewMac::CreateViewForWidget(
-    RenderWidgetHost* render_widget_host, bool is_guest_view_hack) {
+    RenderWidgetHost* render_widget_host,
+    RenderWidgetHost* embedder_render_widget_host) {
   if (render_widget_host->GetView()) {
     // During testing, the view will already be set up in most cases to the
     // test view, so we don't want to clobber it with a real one. To verify that
@@ -338,6 +339,7 @@ RenderWidgetHostViewBase* WebContentsViewMac::CreateViewForWidget(
         render_widget_host->GetView());
   }
 
+  const bool is_guest_view_hack = !!embedder_render_widget_host;
   RenderWidgetHostViewMac* view =
       g_create_render_widget_host_view
           ? g_create_render_widget_host_view(render_widget_host,
diff --git extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest.cc extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest.cc
index fa13ab856de9..81216c2bc8ff 100644
--- extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest.cc
+++ extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest.cc
@@ -215,6 +215,8 @@ void MimeHandlerViewGuest::CreateWebContents(
   WebContents::CreateParams params(browser_context(),
                                    guest_site_instance.get());
   params.guest_delegate = this;
+  if (delegate_)
+    delegate_->OverrideWebContentsCreateParams(&params);
   // TODO(erikchen): Fix ownership semantics for guest views.
   // https://crbug.com/832879.
   std::move(callback).Run(
@@ -230,6 +232,9 @@ void MimeHandlerViewGuest::CreateWebContents(
 }
 
 void MimeHandlerViewGuest::DidAttachToEmbedder() {
+  if (delegate_)
+    delegate_->OnGuestAttached();
+
   web_contents()->GetController().LoadURL(
       stream_->handler_url(), content::Referrer(),
       ui::PAGE_TRANSITION_AUTO_TOPLEVEL, std::string());
@@ -259,6 +264,11 @@ bool MimeHandlerViewGuest::ShouldDestroyOnDetach() const {
   return true;
 }
 
+void MimeHandlerViewGuest::WillDestroy() {
+  if (delegate_)
+    delegate_->OnGuestDetached();
+}
+
 WebContents* MimeHandlerViewGuest::OpenURLFromTab(
     WebContents* source,
     const content::OpenURLParams& params) {
diff --git extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest.h extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest.h
index 3d0b70d06fe7..06d5e5d4e9e3 100644
--- extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest.h
+++ extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest.h
@@ -127,6 +127,7 @@ class MimeHandlerViewGuest
   void EmbedderFullscreenToggled(bool entered_fullscreen) final;
   bool ZoomPropagatesFromEmbedderToGuest() const final;
   bool ShouldDestroyOnDetach() const final;
+  void WillDestroy() override;
 
   // WebContentsDelegate implementation.
   content::WebContents* OpenURLFromTab(
diff --git extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest_delegate.h extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest_delegate.h
index 98689e261460..a1b08274f455 100644
--- extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest_delegate.h
+++ extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest_delegate.h
@@ -8,9 +8,9 @@
 #include <string>
 
 #include "base/macros.h"
+#include "content/public/browser/web_contents.h"
 
 namespace content {
-class WebContents;
 struct ContextMenuParams;
 }  // namespace content
 
@@ -22,6 +22,14 @@ class MimeHandlerViewGuestDelegate {
   MimeHandlerViewGuestDelegate() {}
   virtual ~MimeHandlerViewGuestDelegate() {}
 
+  // Provides an opportunity to supply a custom view implementation.
+  virtual void OverrideWebContentsCreateParams(
+      content::WebContents::CreateParams* params) {}
+
+  // Called when a guest is attached or detached.
+  virtual void OnGuestAttached() {}
+  virtual void OnGuestDetached() {}
+
   // Handles context menu, or returns false if unhandled.
   virtual bool HandleContextMenu(content::WebContents* web_contents,
                                  const content::ContextMenuParams& params);