Compute GpuDriverBugWorkarounds only one time in the GPU process

gpu/command_buffer/service/buffer_manager_unittest.cc

 // 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.
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "gpu/command_buffer/service/buffer_manager.h"
 #include "gpu/command_buffer/service/error_state_mock.h"
 #include "gpu/command_buffer/service/feature_info.h"
@@ skipping 230 matching lines @@
     mock_memory_tracker_ = new StrictMock<MockMemoryTracker>();
     SetUpBase(mock_memory_tracker_.get(), NULL, "");
   }
 
   scoped_refptr<MockMemoryTracker> mock_memory_tracker_;
 };
 
 class BufferManagerClientSideArraysTest : public BufferManagerTestBase {
  protected:
   void SetUp() override {
-    feature_info_ = new FeatureInfo();
-    feature_info_->workarounds_.use_client_side_arrays_for_stream_buffers =
-      true;
+    GpuDriverBugWorkarounds::Initialize(gpu_driver_bug_workarounds_);
+    gpu_driver_bug_workarounds_.use_client_side_arrays_for_stream_buffers =
+        true;
+    feature_info_ = new FeatureInfo(gpu_driver_bug_workarounds_);
     SetUpBase(NULL, feature_info_.get(), "");
   }
 
   scoped_refptr<FeatureInfo> feature_info_;
 };
 
 #define EXPECT_MEMORY_ALLOCATION_CHANGE(old_size, new_size)   \
   EXPECT_CALL(*mock_memory_tracker_.get(),                          \
               TrackMemoryAllocatedChange(old_size, new_size)) \
       .Times(1).RetiresOnSaturation()
@@ skipping 302 matching lines @@
         EXPECT_TRUE(manager_->SetTarget(buffer, kTargets[jj]));
       }
     }
   }
 }
 
 }  // namespace gles2
 }  // namespace gpu