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 <limits>
 
 #include "base/basictypes.h"
@@ skipping 1627 matching lines @@
     ContextProvider* context_provider,
     bool using_map_image) {
   DCHECK(settings_.impl_side_painting);
   DCHECK(resource_provider);
   tile_manager_ =
       TileManager::Create(this,
                           resource_provider,
                           settings_.num_raster_threads,
                           rendering_stats_instrumentation_,
                           using_map_image,
-                          GetMaxTransferBufferUsageBytes(context_provider));
+                          GetMaxTransferBufferUsageBytes(context_provider),
+                          settings_.use_rgba_4444_textures);
 
   UpdateTileManagerMemoryPolicy(ActualManagedMemoryPolicy());
   need_to_update_visible_tiles_before_draw_ = false;
 }
 
 void LayerTreeHostImpl::EnforceZeroBudget(bool zero_budget) {
   SetManagedMemoryPolicy(cached_managed_memory_policy_, zero_budget);
 }
 
 bool LayerTreeHostImpl::InitializeRenderer(
@@ skipping 965 matching lines @@
       break;
   }
 
   // Allow for multiple creation requests with the same UIResourceId.  The
   // previous resource is simply deleted.
   ResourceProvider::ResourceId id = ResourceIdForUIResource(uid);
   if (id)
     DeleteUIResource(uid);
   id = resource_provider_->CreateResource(
       bitmap->GetSize(),
-      resource_provider_->best_texture_format(),
       wrap_mode,
-      ResourceProvider::TextureUsageAny);
+      ResourceProvider::TextureUsageAny,
+      resource_provider_->best_texture_format());
 
   ui_resource_map_[uid] = id;
   resource_provider_->SetPixels(id,
                                 reinterpret_cast<uint8_t*>(bitmap->GetPixels()),
                                 gfx::Rect(bitmap->GetSize()),
                                 gfx::Rect(bitmap->GetSize()),
                                 gfx::Vector2d(0, 0));
 }
 
 void LayerTreeHostImpl::DeleteUIResource(UIResourceId uid) {
@@ skipping 15 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