Preliminary compositor disabling patch.

cc/layers/render_surface_impl.cc

 // Copyright 2011 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 "cc/layers/render_surface_impl.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/strings/stringprintf.h"
@@ skipping 128 matching lines @@
         contributing_delegated_render_pass_layer_list_[i];
     delegated_renderer_layer->AppendContributingRenderPasses(pass_sink);
   }
 
   scoped_ptr<RenderPass> pass = RenderPass::Create(layer_list_.size());
   pass->SetNew(GetRenderPassId(),
                content_rect_,
                gfx::IntersectRects(content_rect_,
                                    damage_tracker_->current_damage_rect()),
                screen_space_transform_);
+  pass->overlay_rect = damage_tracker_->current_overlay_rect();
   pass_sink->AppendRenderPass(pass.Pass());
 }
 
 void RenderSurfaceImpl::AppendQuads(RenderPass* render_pass,
                                     const gfx::Transform& draw_transform,
                                     const Occlusion& occlusion_in_content_space,
                                     SkColor debug_border_color,
                                     float debug_border_width,
                                     LayerImpl* mask_layer,
                                     AppendQuadsData* append_quads_data,
@@ skipping 50 matching lines @@
                render_pass_id,
                mask_resource_id,
                mask_uv_scale,
                mask_texture_size,
                owning_layer_->filters(),
                owning_layer_to_target_scale,
                owning_layer_->background_filters());
 }
 
 }  // namespace cc