Support tracking focused element for OOPIFs.

content/browser/frame_host/render_frame_host_impl.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 554 matching lines @@
   void ResetLoadingState();
 
   // Tells the renderer that this RenderFrame will soon be swapped out, and thus
   // not to create any new modal dialogs until it happens.  This must be done
   // separately so that the ScopedPageLoadDeferrers of any current dialogs are
   // no longer on the stack when we attempt to swap it out.
   void SuppressFurtherDialogs();
 
   void SetHasReceivedUserGesture();
 
+  void ClearFocusedElement();
+
   // PlzNavigate: returns the LoFi state of the last successful navigation that
   // made a network request.
   LoFiState last_navigation_lofi_state() const {
     return last_navigation_lofi_state_;
   }
 
+  bool has_focused_editable_element() const {
+    return has_focused_editable_element_;
+  }
+
  protected:
   friend class RenderFrameHostFactory;
 
   // |flags| is a combination of CreateRenderFrameFlags.
   // TODO(nasko): Remove dependency on RenderViewHost here. RenderProcessHost
   // should be the abstraction needed here, but we need RenderViewHost to pass
   // into WebContentsObserver::FrameDetached for now.
   RenderFrameHostImpl(SiteInstance* site_instance,
                       RenderViewHostImpl* render_view_host,
                       RenderFrameHostDelegate* delegate,
@@ skipping 112 matching lines @@
   void OnDidStopLoading();
   void OnDidChangeLoadProgress(double load_progress);
   void OnSerializeAsMHTMLResponse(
       int job_id,
       MhtmlSaveStatus save_status,
       const std::set<std::string>& digests_of_uris_of_serialized_resources,
       base::TimeDelta renderer_main_thread_time);
   void OnSelectionChanged(const base::string16& text,
                           uint32_t offset,
                           const gfx::Range& range);
+  void OnFocusedNodeChanged(bool is_editable_element,
+                            const gfx::Rect& bounds_in_frame_widget);
 
 #if defined(USE_EXTERNAL_POPUP_MENU)
   void OnShowPopup(const FrameHostMsg_ShowPopup_Params& params);
   void OnHidePopup();
 #endif
 
   // Registers Mojo interfaces that this frame host makes available.
   void RegisterMojoInterfaces();
 
   // Resets any waiting state of this RenderFrameHost that is no longer
@@ skipping 343 matching lines @@
   LoFiState last_navigation_lofi_state_;
 
   mojo::Binding<mojom::FrameHost> frame_host_binding_;
   mojom::FramePtr frame_;
 
   // If this is true then this object was created in response to a renderer
   // initiated request. Init() will be called, and until then navigation
   // requests should be queued.
   bool waiting_for_init_;
 
+  // If there then this frame's document has a focused element which editable.

[ncarter (slow), 2016/12/16 19:17:21]

"If there" -> "If true"

"which editable" -> "which is editable"

[EhsanK, 2016/12/20 16:39:10]

Thanks! Done.

+  bool has_focused_editable_element_;
+
   typedef std::pair<CommonNavigationParams, BeginNavigationParams>
       PendingNavigation;
   std::unique_ptr<PendingNavigation> pendinging_navigate_;
 
   // Callback for responding when
   // |FrameHostMsg_TextSurroundingSelectionResponse| message comes.
   TextSurroundingSelectionCallback text_surrounding_selection_callback_;
 
   // Hosts media::mojom::InterfaceFactory for the RenderFrame and forwards
   // media::mojom::InterfaceFactory calls to the remote "media" service.
   std::unique_ptr<MediaInterfaceProxy> media_interface_proxy_;
 
   std::vector<std::unique_ptr<service_manager::InterfaceRegistry>>
       media_registries_;
 
   std::unique_ptr<AssociatedInterfaceProviderImpl>
       remote_associated_interfaces_;
 
   // NOTE: This must be the last member.
   base::WeakPtrFactory<RenderFrameHostImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_