[cc] Make LayerImpls point at LayerTreeImpl instead of LTHI

cc/picture_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/picture_layer_impl.h"
 
 #include "base/time.h"
 #include "cc/append_quads_data.h"
 #include "cc/checkerboard_draw_quad.h"
 #include "cc/debug_border_draw_quad.h"
 #include "cc/debug_colors.h"
 #include "cc/layer_tree_host_impl.h"
 #include "cc/math_util.h"
 #include "cc/quad_sink.h"
 #include "cc/solid_color_draw_quad.h"
 #include "cc/tile_draw_quad.h"
 #include "ui/gfx/quad_f.h"
 
 namespace cc {
 
-PictureLayerImpl::PictureLayerImpl(LayerTreeHostImpl* host, int id)
-    : LayerImpl(host, id),
+PictureLayerImpl::PictureLayerImpl(LayerTreeImpl* treeImpl, int id)
+    : LayerImpl(treeImpl, id),
       tilings_(this),
       pile_(PicturePileImpl::Create()),
       last_update_time_(0) {
 }
 
 PictureLayerImpl::~PictureLayerImpl() {
 }
 
 const char* PictureLayerImpl::layerTypeAsString() const {
   return "PictureLayer";
@@ skipping 143 matching lines @@
       GL_RGBA,
       rect,
       tiling->contents_scale()));
 }
 
 void PictureLayerImpl::SyncFromActiveLayer(const PictureLayerImpl* other) {
   tilings_.CloneFrom(other->tilings_);
 }
 
 }  // namespace cc