Fixed MSAN uninitialized-value warning.

content/renderer/render_thread_impl.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 "content/renderer/render_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <vector>
@@ skipping 1206 matching lines @@
 
 CreateCommandBufferResult RenderThreadImpl::CreateViewCommandBuffer(
       int32 surface_id,
       const GPUCreateCommandBufferConfig& init_params,
       int32 route_id) {
   TRACE_EVENT1("gpu",
                "RenderThreadImpl::CreateViewCommandBuffer",
                "surface_id",
                surface_id);
 
-  CreateCommandBufferResult result;
+  CreateCommandBufferResult result = CREATE_COMMAND_BUFFER_FAILED;
   IPC::Message* message = new GpuHostMsg_CreateViewCommandBuffer(
       surface_id,
       init_params,
       route_id,
       &result);
 
   // Allow calling this from the compositor thread.
   thread_safe_sender()->Send(message);
 
   return result;
@@ skipping 370 matching lines @@
   hidden_widget_count_--;
 
   if (!GetContentClient()->renderer()->RunIdleHandlerWhenWidgetsHidden()) {
     return;
   }
 
   ScheduleIdleHandler(kLongIdleHandlerDelayMs);
 }
 
 }  // namespace content