cc: Adding support for RGBA_4444 tile textures

cc/layers/content_layer.cc

 // Copyright 2010 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/content_layer.h"
 
 #include "base/auto_reset.h"
 #include "base/metrics/histogram.h"
 #include "base/time/time.h"
 #include "cc/layers/content_layer_client.h"
@@ skipping 109 matching lines @@
         rendering_stats_instrumentation(),
         id());
   } else {
     updater_ = BitmapContentLayerUpdater::Create(
         painter.Pass(),
         rendering_stats_instrumentation(),
         id());
   }
   updater_->SetOpaque(contents_opaque());
 
-  unsigned texture_format =
-      layer_tree_host()->GetRendererCapabilities().best_texture_format;
-  SetTextureFormat(texture_format);
+  SetTextureFormat(
+      layer_tree_host()->GetRendererCapabilities().best_texture_format);
 }
 
 void ContentLayer::SetContentsOpaque(bool opaque) {
   Layer::SetContentsOpaque(opaque);
   if (updater_.get())
     updater_->SetOpaque(opaque);
 }
 
 void ContentLayer::UpdateCanUseLCDText() {
   if (can_use_lcd_text_last_frame_ == can_use_lcd_text())
@@ skipping 17 matching lines @@
   gfx::RectF opaque;
 
   skia::RefPtr<SkPicture> picture = skia::AdoptRef(new SkPicture);
   SkCanvas* canvas = picture->beginRecording(width, height);
   client_->PaintContents(canvas, gfx::Rect(width, height), &opaque);
   picture->endRecording();
   return picture;
 }
 
 }  // namespace cc