Associate an id with the output surface to handle lost contexts

content/browser/renderer_host/render_widget_host_view_base.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_VIEW_BASE_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_BASE_H_
 
 #if defined(OS_MACOSX)
 #include <OpenGL/OpenGL.h>
 #endif
@@ skipping 58 matching lines @@
   virtual void ProcessAckedTouchEvent(const TouchEventWithLatencyInfo& touch,
                                       InputEventAckState ack_result) OVERRIDE;
   virtual SmoothScrollGesture* CreateSmoothScrollGesture(
       bool scroll_down, int pixels_to_scroll, int mouse_event_x,
       int mouse_event_y) OVERRIDE;
   virtual bool CanSubscribeFrame() const OVERRIDE;
   virtual void BeginFrameSubscription(
       scoped_ptr<RenderWidgetHostViewFrameSubscriber> subscriber) OVERRIDE;
   virtual void EndFrameSubscription() OVERRIDE;
   virtual void OnSwapCompositorFrame(
+      uint32 output_surface_id,
       scoped_ptr<cc::CompositorFrame> frame) OVERRIDE {}
   virtual void OnOverscrolled(gfx::Vector2dF accumulated_overscroll,
                               gfx::Vector2dF current_fling_velocity) OVERRIDE;
   virtual uint32 RendererFrameNumber() OVERRIDE;
   virtual void DidReceiveRendererFrame() OVERRIDE;
 
   void SetBrowserAccessibilityManager(BrowserAccessibilityManager* manager);
 
   // Notification that a resize or move session ended on the native widget.
   void UpdateScreenInfo(gfx::NativeView view);
@@ skipping 62 matching lines @@
   gfx::Rect current_display_area_;
 
   uint32 renderer_frame_number_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewBase);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_BASE_H_