Don't free non-tile resources on GPU rasterization toggle

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 <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 106 matching lines @@
     DCHECK_EQ(layer_list_[i], *it);
   }
 #endif
 
   if (!LayerListIsEmpty()) {
     LayerTreeHostCommon::CallFunctionForEveryLayer(
         this, [](LayerImpl* layer) { layer->ReleaseResources(); });
   }
 }
 
-void LayerTreeImpl::RecreateResources() {
+void LayerTreeImpl::ReleaseTileResources() {
   if (!LayerListIsEmpty()) {
     LayerTreeHostCommon::CallFunctionForEveryLayer(
-        this, [](LayerImpl* layer) { layer->RecreateResources(); });
+        this, [](LayerImpl* layer) { layer->ReleaseTileResources(); });
   }
 }
 
+void LayerTreeImpl::RecreateTileResources() {
+  if (!LayerListIsEmpty()) {
+    LayerTreeHostCommon::CallFunctionForEveryLayer(
+        this, [](LayerImpl* layer) { layer->RecreateTileResources(); });
+  }
+}
+
 bool LayerTreeImpl::IsViewportLayerId(int id) const {
   if (id == inner_viewport_scroll_layer_id_ ||
       id == outer_viewport_scroll_layer_id_)
     return true;
   if (InnerViewportContainerLayer() &&
       id == InnerViewportContainerLayer()->id())
     return true;
   if (OuterViewportContainerLayer() &&
       id == OuterViewportContainerLayer()->id())
     return true;
@@ skipping 1933 matching lines @@
 
 void LayerTreeImpl::ResetAllChangeTracking() {
   layers_that_should_push_properties_.clear();
   // Iterate over all layers, including masks.
   for (auto& layer : *layers_)
     layer->ResetChangeTracking();
   property_trees_.ResetAllChangeTracking();
 }
 
 }  // namespace cc