Preliminary compositor disabling patch.

content/browser/compositor/delegated_frame_host.cc

 // Copyright 2014 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/compositor/delegated_frame_host.h"
 
 #include "base/callback_helpers.h"
 #include "base/command_line.h"
 #include "cc/output/compositor_frame.h"
 #include "cc/output/compositor_frame_ack.h"
@@ skipping 297 matching lines @@
     float frame_device_scale_factor,
     const std::vector<ui::LatencyInfo>& latency_info) {
   DCHECK(!frame_data->render_pass_list.empty());
 
   cc::RenderPass* root_pass = frame_data->render_pass_list.back();
 
   gfx::Size frame_size = root_pass->output_rect.size();
   gfx::Size frame_size_in_dip =
       gfx::ConvertSizeToDIP(frame_device_scale_factor, frame_size);
 
-  gfx::Rect damage_rect = gfx::ToEnclosingRect(root_pass->damage_rect);
+  gfx::Rect damage_rect = root_pass->GetFullDamageRect();
   damage_rect.Intersect(gfx::Rect(frame_size));
   gfx::Rect damage_rect_in_dip =
       gfx::ConvertRectToDIP(frame_device_scale_factor, damage_rect);
 
   if (ShouldSkipFrame(frame_size_in_dip)) {
     cc::CompositorFrameAck ack;
     cc::TransferableResource::ReturnResources(frame_data->resource_list,
                                               &ack.resources);
 
     skipped_latency_info_list_.insert(skipped_latency_info_list_.end(),
@@ skipping 698 matching lines @@
     cc::SurfaceManager* manager = factory->GetSurfaceManager();
     new_layer->SetShowSurface(
         surface_id_, base::Bind(&SatisfyCallback, base::Unretained(manager)),
         base::Bind(&RequireCallback, base::Unretained(manager)),
         current_surface_size_, current_scale_factor_,
         current_frame_size_in_dip_);
   }
 }
 
 }  // namespace content