cc: Adding support for RGBA_4444 tile textures

cc/trees/layer_tree_host_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_host_impl.h"
 
 #include <algorithm>
 
 #include "base/basictypes.h"
 #include "base/containers/hash_tables.h"
@@ skipping 1611 matching lines @@
   // Note: order is important here.
   renderer_.reset();
   tile_manager_.reset();
   resource_provider_.reset();
   output_surface_.reset();
 
   if (!output_surface->BindToClient(this))
     return false;
 
   scoped_ptr<ResourceProvider> resource_provider = ResourceProvider::Create(
-      output_surface.get(), settings_.highp_threshold_min);
+      output_surface.get(),
+      settings_.highp_threshold_min,
+      settings_.use_rgba_4444_textures);
   if (!resource_provider)
     return false;
 
   if (output_surface->capabilities().deferred_gl_initialization)
     EnforceZeroBudget(true);
 
   bool skip_gl_renderer = false;
   CreateAndSetRenderer(
       output_surface.get(), resource_provider.get(), skip_gl_renderer);
 
@@ skipping 934 matching lines @@
 
 ResourceProvider::ResourceId LayerTreeHostImpl::ResourceIdForUIResource(
     UIResourceId uid) const {
   UIResourceMap::const_iterator iter = ui_resource_map_.find(uid);
   if (iter != ui_resource_map_.end())
     return iter->second;
   return 0;
 }
 
 }  // namespace cc