Support tracking focused node element for OOPIFs.

content/browser/renderer_host/render_widget_host_delegate.h

 // Copyright (c) 2012 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_RENDERER_HOST_RENDER_WIDGET_HOST_DELEGATE_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_DELEGATE_H_
 
 #include <stdint.h>
 
 #include <vector>
@@ skipping 218 matching lines @@
   // focused WebContents.
   virtual RenderWidgetHostImpl* GetRenderWidgetHostWithPageFocus();
 
   // In cases with multiple RenderWidgetHosts involved in rendering a page, only
   // one widget should be focused and active. This ensures that
   // |render_widget_host| is focused and that its owning WebContents is also
   // the focused WebContents.
   virtual void FocusOwningWebContents(
       RenderWidgetHostImpl* render_widget_host) {}
 
+  // Notifies the delegate that a focused editable element has been touched
+  // inside this RenderWidgetHost. If |editable| is true then the focused
+  // element accepts text input.
+  virtual void FocusedNodeTouched(bool editable) {}
+
  protected:
   virtual ~RenderWidgetHostDelegate() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_DELEGATE_H_