cc: Abstract the LayerTreeHost.

cc/layers/heads_up_display_layer.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.h"
 
 #include <algorithm>
 
 #include "base/trace_event/trace_event.h"
 #include "cc/layers/heads_up_display_layer_impl.h"
@@ skipping 22 matching lines @@
 void HeadsUpDisplayLayer::PrepareForCalculateDrawProperties(
     const gfx::Size& device_viewport, float device_scale_factor) {
   gfx::Size device_viewport_in_layout_pixels = gfx::Size(
       device_viewport.width() / device_scale_factor,
       device_viewport.height() / device_scale_factor);
 
   gfx::Size bounds;
   gfx::Transform matrix;
   matrix.MakeIdentity();
 
-  if (layer_tree_host()->debug_state().ShowHudRects()) {
+  if (layer_tree_host()->GetDebugState().ShowHudRects()) {
     bounds = device_viewport_in_layout_pixels;
   } else {
     int size = 256;
     bounds.SetSize(size, size);
     matrix.Translate(device_viewport_in_layout_pixels.width() - size, 0.0);
   }
 
   SetBounds(bounds);
   SetTransform(matrix);
 }
@@ skipping 15 matching lines @@
 void HeadsUpDisplayLayer::PushPropertiesTo(LayerImpl* layer) {
   Layer::PushPropertiesTo(layer);
   TRACE_EVENT0("cc", "HeadsUpDisplayLayer::PushPropertiesTo");
   HeadsUpDisplayLayerImpl* layer_impl =
       static_cast<HeadsUpDisplayLayerImpl*>(layer);
 
   layer_impl->SetHUDTypeface(typeface_);
 }
 
 }  // namespace cc