Add DriverBugWorkaroundsInGpuProcessPage to gpu_process_test.py

content/renderer/gpu/gpu_benchmarking_extension.h

 // Copyright (c) 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.
 
 #ifndef CONTENT_RENDERER_GPU_GPU_BENCHMARKING_EXTENSION_H_
 #define CONTENT_RENDERER_GPU_GPU_BENCHMARKING_EXTENSION_H_
 
 #include "base/macros.h"
 #include "gin/wrappable.h"
 
@@ skipping 38 matching lines @@
   bool ScrollBounce(gin::Arguments* args);
   bool PinchBy(gin::Arguments* args);
   float VisualViewportHeight();
   float VisualViewportWidth();
   bool Tap(gin::Arguments* args);
   void ClearImageCache();
   int RunMicroBenchmark(gin::Arguments* args);
   bool SendMessageToMicroBenchmark(int id, v8::Local<v8::Object> message);
   bool HasGpuChannel();
   bool HasGpuProcess();
+  void GetGpuDriverBugWorkarounds(gin::Arguments* args);
 
   DISALLOW_COPY_AND_ASSIGN(GpuBenchmarking);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_GPU_GPU_BENCHMARKING_EXTENSION_H_