cc: Adding support for RGBA_4444 tile textures

cc/trees/layer_tree_host_impl.cc

Index: cc/trees/layer_tree_host_impl.cc
diff --git a/cc/trees/layer_tree_host_impl.cc b/cc/trees/layer_tree_host_impl.cc
index 90907d7583f0bf6d624b4dfac18a41c7f934d24b..1e9dc03eedb5af9a23638ff4add9f469f0c72002 100644
--- a/cc/trees/layer_tree_host_impl.cc
+++ b/cc/trees/layer_tree_host_impl.cc
@@ -1645,7 +1645,8 @@ void LayerTreeHostImpl::CreateAndSetTileManager(
                           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;
@@ -1674,7 +1675,8 @@ bool LayerTreeHostImpl::InitializeRenderer(
     return false;
 
   scoped_ptr<ResourceProvider> resource_provider = ResourceProvider::Create(
-      output_surface.get(), settings_.highp_threshold_min);
+      output_surface.get(),
+      settings_.highp_threshold_min);
   if (!resource_provider)
     return false;
 
@@ -2631,9 +2633,9 @@ void LayerTreeHostImpl::CreateUIResource(
     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,