Make RenderWidgetHostViewAura::CopyFromCompositingSurface readback layer

content/browser/renderer_host/render_widget_host_view_mac.mm

 // 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.
 
 #include "content/browser/renderer_host/render_widget_host_view_mac.h"
 
 #include <QuartzCore/QuartzCore.h>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 852 matching lines @@
   composition_range_ = range;
   composition_bounds_ = character_bounds;
 }
 
 void RenderWidgetHostViewMac::DidUpdateBackingStore(
     const gfx::Rect& scroll_rect,
     const gfx::Vector2d& scroll_delta,
     const std::vector<gfx::Rect>& copy_rects,
     const ui::LatencyInfo& latency_info) {
   GotSoftwareFrame();
+  DidReceiveRendererFrame();
 
   software_latency_info_.MergeWith(latency_info);
 
   if (!is_hidden_) {
     std::vector<gfx::Rect> rects(copy_rects);
 
     // Because the findbar might be open, we cannot use scrollRect:by: here. For
     // now, simply mark all of scroll rect as dirty.
     if (!scroll_rect.IsEmpty())
       rects.push_back(scroll_rect);
@@ skipping 622 matching lines @@
   return true;
 }
 
 void RenderWidgetHostViewMac::AcceleratedSurfaceBuffersSwapped(
     const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params,
     int gpu_host_id) {
   TRACE_EVENT0("browser",
       "RenderWidgetHostViewMac::AcceleratedSurfaceBuffersSwapped");
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
+  DidReceiveRendererFrame();
   pending_swap_buffers_acks_.push_back(std::make_pair(params.route_id,
                                                       gpu_host_id));
 
   if (CompositorSwapBuffers(params.surface_handle,
                             params.size,
                             params.scale_factor,
                             params.latency_info)) {
     ThrottledAckPendingSwapBuffers();
   } else {
     GotAcceleratedCompositingError();
   }
 }
 
 void RenderWidgetHostViewMac::AcceleratedSurfacePostSubBuffer(
     const GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params& params,
     int gpu_host_id) {
   TRACE_EVENT0("browser",
       "RenderWidgetHostViewMac::AcceleratedSurfacePostSubBuffer");
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
+  DidReceiveRendererFrame();
   pending_swap_buffers_acks_.push_back(std::make_pair(params.route_id,
                                                       gpu_host_id));
 
   if (CompositorSwapBuffers(params.surface_handle,
                             params.surface_size,
                             params.surface_scale_factor,
                             params.latency_info)) {
     ThrottledAckPendingSwapBuffers();
   } else {
     GotAcceleratedCompositingError();
@@ skipping 2170 matching lines @@
   return YES;
 }
 
 - (BOOL)isOpaque {
   if (renderWidgetHostView_->use_core_animation_)
     return YES;
   return [super isOpaque];
 }
 
 @end