Compute GpuDriverBugWorkarounds only one time in the GPU process

gpu/command_buffer/service/context_group_unittest.cc

Index: gpu/command_buffer/service/context_group_unittest.cc
diff --git a/gpu/command_buffer/service/context_group_unittest.cc b/gpu/command_buffer/service/context_group_unittest.cc
index f343e5e2e5853464ae9fc7d3cd3d6e3fb6e0a33b..bd0fbf932ba653ab33d875268d625e1094c31cb8 100644
--- a/gpu/command_buffer/service/context_group_unittest.cc
+++ b/gpu/command_buffer/service/context_group_unittest.cc
@@ -42,9 +42,10 @@ class ContextGroupTest : public GpuServiceTest {
   void SetUp() override {
     GpuServiceTest::SetUp();
     decoder_.reset(new MockGLES2Decoder());
-    group_ = scoped_refptr<ContextGroup>(new ContextGroup(
-        gpu_preferences_, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-        kBindGeneratesResource));
+    scoped_refptr<FeatureInfo> feature_info = new FeatureInfo;
+    group_ = scoped_refptr<ContextGroup>(
+        new ContextGroup(gpu_preferences_, NULL, NULL, NULL, NULL, feature_info,
+                         NULL, NULL, kBindGeneratesResource));
   }
 
   GpuPreferences gpu_preferences_;