Compute GpuDriverBugWorkarounds only one time in the GPU process

gpu/command_buffer/service/buffer_manager_unittest.cc

Index: gpu/command_buffer/service/buffer_manager_unittest.cc
diff --git a/gpu/command_buffer/service/buffer_manager_unittest.cc b/gpu/command_buffer/service/buffer_manager_unittest.cc
index 45e08c80fccc02ebe40feec40a996ed293248454..5e05f7fba1abf4fffed3d4953aef1bc00f14afc6 100644
--- a/gpu/command_buffer/service/buffer_manager_unittest.cc
+++ b/gpu/command_buffer/service/buffer_manager_unittest.cc
@@ -248,9 +248,10 @@ class BufferManagerMemoryTrackerTest : public BufferManagerTestBase {
 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(), "");
   }