Hoist SetNeedsBeginFrame messages up to the RWHostImpl

content/browser/renderer_host/render_widget_host_impl.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_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 506 matching lines @@
   // Expose increment/decrement of the in-flight event count, so
   // RenderViewHostImpl can account for in-flight beforeunload/unload events.
   int increment_in_flight_event_count() { return ++in_flight_event_count_; }
   int decrement_in_flight_event_count() {
     DCHECK_GT(in_flight_event_count_, 0);
     return --in_flight_event_count_;
   }
 
   bool renderer_initialized() const { return renderer_initialized_; }
 
+  bool needs_begin_frames() const { return needs_begin_frames_; }
+
  protected:
   // ---------------------------------------------------------------------------
   // The following method is overridden by RenderViewHost to send upwards to
   // its delegate.
 
   // Callback for notification that we failed to receive any rendered graphics
   // from a newly loaded page. Used for testing.
   virtual void NotifyNewContentRenderingTimeoutForTesting() {}
 
   // ---------------------------------------------------------------------------
@@ skipping 49 matching lines @@
   void OnUnlockMouse();
   void OnShowDisambiguationPopup(const gfx::Rect& rect_pixels,
                                  const gfx::Size& size,
                                  const cc::SharedBitmapId& id);
   void OnSelectionChanged(const base::string16& text,
                           uint32_t offset,
                           const gfx::Range& range);
   void OnSelectionBoundsChanged(
       const ViewHostMsg_SelectionBounds_Params& params);
   void OnForwardCompositorProto(const std::vector<uint8_t>& proto);
+  void OnSetNeedsBeginFrames(bool needs_begin_frames);
   void OnHittestData(const FrameHostMsg_HittestData_Params& params);
 
   // Called (either immediately or asynchronously) after we're done with our
   // BackingStore and can send an ACK to the renderer so it can paint onto it
   // again.
   void DidUpdateBackingStore(const ViewHostMsg_UpdateRect_Params& params,
                              const base::TimeTicks& paint_start);
 
   // Give key press listeners a chance to handle this key press. This allow
   // widgets that don't have focus to still handle key presses.
@@ skipping 204 matching lines @@
   // Indicates whether a RenderFramehost has ownership, in which case this
   // object does not self destroy.
   bool owned_by_render_frame_host_;
 
   // Indicates whether this RenderWidgetHost thinks is focused. This is trying
   // to match what the renderer process knows. It is different from
   // RenderWidgetHostView::HasFocus in that in that the focus request may fail,
   // causing HasFocus to return false when is_focused_ is true.
   bool is_focused_;
 
+  // Whether the view should send begin frame messages to its render widget.
+  // This is state that may arrive before the view has been set and that must be
+  // consistent with the state in the renderer, so this host handles it.
+  bool needs_begin_frames_ = false;
+
   // This value indicates how long to wait before we consider a renderer hung.
   base::TimeDelta hung_renderer_delay_;
 
   // Stores the reason the hang_monitor_timeout_ has been started. Used to
   // report histograms if the renderer is hung.
   RenderWidgetHostDelegate::RendererUnresponsiveType hang_monitor_reason_;
 
   // This value indicates how long to wait for a new compositor frame from a
   // renderer process before clearing any previously displayed content.
   base::TimeDelta new_content_rendering_delay_;
 
 #if defined(OS_MACOSX)
   std::unique_ptr<device::PowerSaveBlocker> power_save_blocker_;
 #endif
 
   base::WeakPtrFactory<RenderWidgetHostImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_