[cc] Make LayerImpls point at LayerTreeImpl instead of LTHI

cc/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/heads_up_display_layer_impl.h"
 
 #include <limits>
 
 #include "base/stringprintf.h"
 #include "cc/debug_colors.h"
@@ skipping 28 matching lines @@
     swizzleMatrix.fMat[3 + 5 * 3] = 1;
 
     SkPaint paint;
     skia::RefPtr<SkColorMatrixFilter> filter =
         skia::AdoptRef(new SkColorMatrixFilter(swizzleMatrix));
     paint.setColorFilter(filter.get());
 
     return paint;
 }
 
-HeadsUpDisplayLayerImpl::HeadsUpDisplayLayerImpl(LayerTreeHostImpl* hostImpl, int id)
-    : LayerImpl(hostImpl, id)
+HeadsUpDisplayLayerImpl::HeadsUpDisplayLayerImpl(LayerTreeImpl* treeImpl, int id)
+    : LayerImpl(treeImpl, id)
     , m_averageFPS(0)
     , m_minFPS(0)
     , m_maxFPS(0)
 {
 }
 
 HeadsUpDisplayLayerImpl::~HeadsUpDisplayLayerImpl()
 {
 }
 
@@ skipping 314 matching lines @@
 
     canvas->restore();
 }
 
 const char* HeadsUpDisplayLayerImpl::layerTypeAsString() const
 {
     return "HeadsUpDisplayLayer";
 }
 
 }  // namespace cc