Compute GpuDriverBugWorkarounds only one time in the GPU process

gpu/ipc/service/gpu_command_buffer_stub.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 "gpu/ipc/service/gpu_command_buffer_stub.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 192 matching lines @@
   FastSetActiveURL(active_url_, active_url_hash_, channel_);
 
   gles2::ContextCreationAttribHelper attrib_parser;
   attrib_parser.Parse(requested_attribs_);
 
   if (share_group) {
     context_group_ = share_group->context_group_;
     DCHECK(context_group_->bind_generates_resource() ==
            attrib_parser.bind_generates_resource);
   } else {
+    scoped_refptr<gles2::FeatureInfo> feature_info = new gles2::FeatureInfo(
+        channel_->gpu_channel_manager()->gpu_driver_bug_workarounds());
     context_group_ = new gles2::ContextGroup(
         channel_->gpu_channel_manager()->gpu_preferences(), mailbox_manager,
         new GpuCommandBufferMemoryTracker(channel,
                                           command_buffer_id_.GetUnsafeValue()),
         channel_->gpu_channel_manager()->shader_translator_cache(),
-        channel_->gpu_channel_manager()->framebuffer_completeness_cache(), NULL,
-        subscription_ref_set, pending_valuebuffer_state,
+        channel_->gpu_channel_manager()->framebuffer_completeness_cache(),
+        feature_info, subscription_ref_set, pending_valuebuffer_state,
         attrib_parser.bind_generates_resource);
   }
 
 // Virtualize PreferIntegratedGpu contexts by default on OS X to prevent
 // performance regressions when enabling FCM.
 // http://crbug.com/180463
 #if defined(OS_MACOSX)
   if (gpu_preference_ == gfx::PreferIntegratedGpu)
     use_virtualized_gl_context_ = true;
 #endif
@@ skipping 897 matching lines @@
                                                     result));
 }
 
 void GpuCommandBufferStub::SendUpdateVSyncParameters(base::TimeTicks timebase,
                                                      base::TimeDelta interval) {
   Send(new GpuCommandBufferMsg_UpdateVSyncParameters(route_id_, timebase,
                                                      interval));
 }
 
 }  // namespace gpu