cc: Move gpu rasterization flag from tree-impl to tree-host-impl.

cc/trees/layer_tree_impl.cc

 // Copyright 2011 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/trees/layer_tree_impl.h"
 
 #include <limits>
 #include <set>
 
 #include "base/debug/trace_event.h"
@@ skipping 78 matching lines @@
       has_transparent_background_(false),
       page_scale_layer_(NULL),
       inner_viewport_scroll_layer_(NULL),
       outer_viewport_scroll_layer_(NULL),
       page_scale_factor_(1),
       page_scale_delta_(1),
       sent_page_scale_delta_(1),
       min_page_scale_factor_(0),
       max_page_scale_factor_(0),
       scrolling_layer_id_from_previous_tree_(0),
-      use_gpu_rasterization_(false),
       contents_textures_purged_(false),
       requires_high_res_to_draw_(false),
       viewport_size_invalid_(false),
       needs_update_draw_properties_(true),
       needs_full_tree_sync_(true),
       next_activation_forces_redraw_(false),
       render_surface_layer_list_id_(0) {
 }
 
 LayerTreeImpl::~LayerTreeImpl() {
@@ skipping 332 matching lines @@
                                            root_layer_scroll_offset_delegate_,
                                            this));
 }
 
 void LayerTreeImpl::ClearViewportLayers() {
   page_scale_layer_ = NULL;
   inner_viewport_scroll_layer_ = NULL;
   outer_viewport_scroll_layer_ = NULL;
 }
 
-void LayerTreeImpl::SetUseGpuRasterization(bool use_gpu) {
-  if (use_gpu == use_gpu_rasterization_)
-    return;
-
-  use_gpu_rasterization_ = use_gpu;
-  ReleaseResources();
-}
-
 void LayerTreeImpl::UpdateDrawProperties() {
   needs_update_draw_properties_ = false;
   render_surface_layer_list_.clear();
 
   // For max_texture_size.
   if (!layer_tree_host_impl_->renderer())
     return;
 
   if (!root_layer())
     return;
@@ skipping 280 matching lines @@
       NOTREACHED();
       break;
   }
   return scoped_ptr<ScrollbarAnimationController>();
 }
 
 void LayerTreeImpl::DidAnimateScrollOffset() {
   layer_tree_host_impl_->DidAnimateScrollOffset();
 }
 
+bool LayerTreeImpl::use_gpu_rasterization() const {
+  return layer_tree_host_impl_->use_gpu_rasterization();
+}
+
 void LayerTreeImpl::SetNeedsRedraw() {
   layer_tree_host_impl_->SetNeedsRedraw();
 }
 
 const LayerTreeDebugState& LayerTreeImpl::debug_state() const {
   return layer_tree_host_impl_->debug_state();
 }
 
 float LayerTreeImpl::device_scale_factor() const {
   return layer_tree_host_impl_->device_scale_factor();
@@ skipping 508 matching lines @@
 LayerImpl* LayerTreeImpl::FindLayerThatIsHitByPointInTouchHandlerRegion(
     const gfx::PointF& screen_space_point) {
   FindTouchEventLayerFunctor func = {screen_space_point};
   FindClosestMatchingLayerDataForRecursion data_for_recursion;
   FindClosestMatchingLayer(
       screen_space_point, root_layer(), func, &data_for_recursion);
   return data_for_recursion.closest_match;
 }
 
 }  // namespace cc