Blend TextureLayer background-color at draw time.

cc/layers/heads_up_display_layer_impl.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/layers/heads_up_display_layer_impl.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/strings/string_split.h"
@@ skipping 112 matching lines @@
   bool flipped = false;
   scoped_ptr<TextureDrawQuad> quad = TextureDrawQuad::Create();
   quad->SetNew(shared_quad_state,
                quad_rect,
                opaque_rect,
                hud_resource_->id(),
                premultiplied_alpha,
                uv_top_left,
                uv_bottom_right,
                vertex_opacity,
+               SK_ColorTRANSPARENT,
                flipped);
   quad_sink->Append(quad.PassAs<DrawQuad>(), append_quads_data);
 }
 
 void HeadsUpDisplayLayerImpl::UpdateHudTexture(
     ResourceProvider* resource_provider) {
   if (!hud_resource_->id())
     return;
 
   SkISize canvas_size;
@@ skipping 559 matching lines @@
   }
 
   canvas->restore();
 }
 
 const char* HeadsUpDisplayLayerImpl::LayerTypeAsString() const {
   return "cc::HeadsUpDisplayLayerImpl";
 }
 
 }  // namespace cc