Add DriverBugWorkaroundsInGpuProcessPage to gpu_process_test.py

gpu/config/gpu_driver_bug_workaround_type.h

 // Copyright (c) 2013 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 GPU_CONFIG_GPU_DRIVER_BUG_WORKAROUND_TYPE_H_
 #define GPU_CONFIG_GPU_DRIVER_BUG_WORKAROUND_TYPE_H_
 
 #include <string>
 
 #include "gpu/gpu_export.h"
@@ skipping 142 matching lines @@
   GPU_OP(USE_INTERMEDIARY_FOR_COPY_TEXTURE_IMAGE,            \
          use_intermediary_for_copy_texture_image)            \
   GPU_OP(USE_NON_ZERO_SIZE_FOR_CLIENT_SIDE_STREAM_BUFFERS,   \
          use_non_zero_size_for_client_side_stream_buffers)   \
   GPU_OP(USE_VIRTUALIZED_GL_CONTEXTS,                        \
          use_virtualized_gl_contexts)                        \
   GPU_OP(VALIDATE_MULTISAMPLE_BUFFER_ALLOCATION,             \
          validate_multisample_buffer_allocation)             \
   GPU_OP(WAKE_UP_GPU_BEFORE_DRAWING,                         \
          wake_up_gpu_before_drawing)                         \
+  GPU_OP(USE_TESTING_GPU_DRIVER_WORKAROUND,                  \
+         use_gpu_driver_workaround_for_testing)              \
 
 namespace gpu {
 
 // Provides all types of GPU driver bug workarounds.
 enum GpuDriverBugWorkaroundType {
 #define GPU_OP(type, name) type,
   GPU_DRIVER_BUG_WORKAROUNDS(GPU_OP)
 #undef GPU_OP
   NUMBER_OF_GPU_DRIVER_BUG_WORKAROUND_TYPES
 };
 
 GPU_EXPORT std::string GpuDriverBugWorkaroundTypeToString(
     GpuDriverBugWorkaroundType type);
 
 }  // namespace gpu
 
 #endif  // GPU_CONFIG_GPU_DRIVER_BUG_WORKAROUND_TYPE_H_