cc: Adding support for RGBA_4444 tile textures

cc/layers/nine_patch_layer.cc

 // Copyright 2012 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/layers/nine_patch_layer.h"
 
 #include "cc/layers/nine_patch_layer_impl.h"
 #include "cc/resources/prioritized_resource.h"
 #include "cc/resources/resource_update.h"
 #include "cc/resources/resource_update_queue.h"
@@ skipping 22 matching lines @@
     resource_.reset();
     if (!bitmap_.isNull())
       CreateResource();
   } else if (bitmap_dirty_ && DrawsContent()) {
     CreateResource();
   }
 
   if (resource_) {
     resource_->texture()->set_request_priority(
         PriorityCalculator::UIPriority(true));
-    GLenum texture_format =
-        layer_tree_host()->GetRendererCapabilities().best_texture_format;
     resource_->texture()->SetDimensions(
-        gfx::Size(bitmap_.width(), bitmap_.height()), texture_format);
+        gfx::Size(bitmap_.width(), bitmap_.height()),
+        layer_tree_host()->GetRendererCapabilities().best_texture_format);
   }
 }
 
 void NinePatchLayer::SetBitmap(const SkBitmap& bitmap, gfx::Rect aperture) {
   bitmap_ = bitmap;
   image_aperture_ = aperture;
   bitmap_dirty_ = true;
   SetNeedsDisplay();
 }
 
@@ skipping 56 matching lines @@
         gfx::Size(bitmap_.width(), bitmap_.height()), image_aperture_);
   }
 
   // NinePatchLayer must push properties every commit to make sure
   // NinePatchLayerImpl::resource_id_ is valid.
   // http://crbug.com/276482
   needs_push_properties_ = true;
 }
 
 }  // namespace cc