Add hints for potential overlay promotion on android.

cc/output/direct_renderer.cc

 // Copyright 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 "cc/output/direct_renderer.h"
 
 #include <stddef.h>
 
 #include <unordered_map>
 #include <utility>
@@ skipping 289 matching lines @@
       }
     }
   } else {
     DrawRenderPassAndExecuteCopyRequests(&frame, root_render_pass);
   }
 
   FinishDrawingFrame(&frame);
   render_passes_in_draw_order->clear();
 }
 
+bool DirectRenderer::IsResourcePromotable(ResourceId resource_id) {
+  return overlay_processor_->IsResourcePromotable(resource_id);
+}
+
 gfx::Rect DirectRenderer::ComputeScissorRectForRenderPass(
     const DrawingFrame* frame) {
   if (frame->current_render_pass == frame->root_render_pass)
     return frame->root_damage_rect;
 
   // If the root damage rect has been expanded due to overlays, all the other
   // damage rect calculations are incorrect.
   if (!frame->root_render_pass->damage_rect.Contains(frame->root_damage_rect))
     return frame->current_render_pass->output_rect;
 
@@ skipping 252 matching lines @@
   auto iter = render_pass_textures_.find(id);
   return iter != render_pass_textures_.end() && iter->second->id();
 }
 
 // static
 gfx::Size DirectRenderer::RenderPassTextureSize(const RenderPass* render_pass) {
   return render_pass->output_rect.size();
 }
 
 }  // namespace cc