gpu: Add a new extension CHROMIUM_deschedule.

gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc

 // Copyright (c) 2016 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 "gpu/command_buffer/service/gles2_cmd_decoder_passthrough.h"
 
 #include "base/memory/ref_counted.h"
 #include "gpu/command_buffer/common/debug_marker_manager.h"
 #include "gpu/command_buffer/common/gles2_cmd_format.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
@@ skipping 290 matching lines @@
 
   // A callback for messages from the decoder.
   void SetShaderCacheCallback(const ShaderCacheCallback& callback) override {}
 
   // Sets the callback for fence sync release and wait calls. The wait call
   // returns true if the channel is still scheduled.
   void SetFenceSyncReleaseCallback(
       const FenceSyncReleaseCallback& callback) override {}
   void SetWaitFenceSyncCallback(
       const WaitFenceSyncCallback& callback) override {}
+  void SetDescheduleUntilFinishedCallback(
+      const NoParamCallback& callback) override {}
+  void SetRescheduleAfterFinishedCallback(
+      const NoParamCallback& callback) override {}
 
   void WaitForReadPixels(base::Closure callback) override {}
 
   uint32_t GetTextureUploadCount() override { return 0; }
 
   base::TimeDelta GetTotalTextureUploadTime() override {
     return base::TimeDelta();
   }
 
   base::TimeDelta GetTotalProcessingCommandsTime() override {
@@ skipping 51 matching lines @@
 
 const GLES2DecoderPassthroughImpl::CommandInfo
     GLES2DecoderPassthroughImpl::command_info[] = {};
 
 GLES2Decoder* CreateGLES2DecoderPassthroughImpl(ContextGroup* group) {
   return new GLES2DecoderPassthroughImpl(group);
 }
 
 }  // namespace gles2
 }  // namespace gpu