Removed calls to RefPtr::Release in return statements with auto move.

third_party/WebKit/Source/platform/graphics/gpu/DrawingBuffer.cpp

 /*
  * Copyright (c) 2010, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 105 matching lines @@
 
   RefPtr<DrawingBuffer> drawing_buffer = AdoptRef(new DrawingBuffer(
       std::move(context_provider), std::move(extensions_util), client,
       discard_framebuffer_supported, want_alpha_channel, premultiplied_alpha,
       preserve, web_gl_version, want_depth_buffer, want_stencil_buffer,
       chromium_image_usage, color_params));
   if (!drawing_buffer->Initialize(size, multisample_supported)) {
     drawing_buffer->BeginDestruction();
     return PassRefPtr<DrawingBuffer>();
   }
-  return drawing_buffer.Release();
+  return drawing_buffer;
 }
 
 void DrawingBuffer::ForceNextDrawingBufferCreationToFail() {
   g_should_fail_drawing_buffer_creation_for_testing = true;
 }
 
 DrawingBuffer::DrawingBuffer(
     std::unique_ptr<WebGraphicsContext3DProvider> context_provider,
     std::unique_ptr<Extensions3DUtil> extensions_util,
     Client* client,
@@ skipping 1243 matching lines @@
   if (pixel_unpack_buffer_binding_dirty_)
     client->DrawingBufferClientRestorePixelUnpackBufferBinding();
 }
 
 bool DrawingBuffer::ShouldUseChromiumImage() {
   return RuntimeEnabledFeatures::WebGLImageChromiumEnabled() &&
          chromium_image_usage_ == kAllowChromiumImage;
 }
 
 }  // namespace blink