Notifying the Out of Process Renderer about Visibility Change of a Remote Frame

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 <vector>
 
 #include "base/basictypes.h"
@@ skipping 105 matching lines @@
   // Requests the renderer to select the region between two points in the
   // currently focused frame.
   virtual void SelectRange(const gfx::Point& base, const gfx::Point& extent) {}
 
   virtual RenderWidgetHostInputEventRouter* GetInputEventRouter();
 
   // Send page-level focus state to all SiteInstances involved in rendering the
   // current FrameTree, not including the main frame's SiteInstance.
   virtual void ReplicatePageFocus(bool is_focused) {}
 
+  // If there is a guest WebContents, it should be notified of the visibility

[Charlie Reis, 2015/12/10 07:45:19]

nit: s/guest/inner/

[EhsanK, 2015/12/10 17:08:31]

Acknowledged. This function is removed now.

+  // change.
+  virtual void ForwardVisibilityChangeToInnerContents(bool visible) {}
+
   // Get the focused RenderWidgetHost associated with |receiving_widget|. A
   // RenderWidgetHostView, upon receiving a keyboard event, will pass its
   // RenderWidgetHost to this function to determine who should ultimately
   // consume the event.  This facilitates keyboard event routing with
   // out-of-process iframes, where multiple RenderWidgetHosts may be involved
   // in rendering a page, yet keyboard events all arrive at the main frame's
   // RenderWidgetHostView.  When a main frame's RenderWidgetHost is passed in,
   // the function returns the focused frame that should consume keyboard
   // events. In all other cases, the function returns back |receiving_widget|.
   virtual RenderWidgetHostImpl* GetFocusedRenderWidgetHost(
@@ skipping 43 matching lines @@
   virtual void ForwardCompositorProto(RenderWidgetHostImpl* render_widget_host,
                                       const std::vector<uint8_t>& proto) {}
 
  protected:
   virtual ~RenderWidgetHostDelegate() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_DELEGATE_H_