Fix potential uninitialized variable.

gpu/command_buffer/service/in_process_command_buffer.cc

 // Copyright 2013 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/command_buffer/service/in_process_command_buffer.h"
 
 #include <queue>
 #include <utility>
 
 #include <GLES2/gl2.h>
@@ skipping 284 matching lines @@
     const std::vector<int32>& attribs,
     gfx::GpuPreference gpu_preference,
     const base::Closure& context_lost_callback,
     unsigned int share_group_id) {
 
   share_resources_ = share_resources;
   context_lost_callback_ = WrapCallback(context_lost_callback);
   share_group_id_ = share_group_id;
 
   base::WaitableEvent completion(true, false);
-  bool result;
+  bool result = false;
   base::Callback<bool(void)> init_task =
       base::Bind(&InProcessCommandBuffer::InitializeOnGpuThread,
                  base::Unretained(this),
                  is_offscreen,
                  window,
                  size,
                  allowed_extensions,
                  attribs,
                  gpu_preference);
   QueueTask(
@@ skipping 130 matching lines @@
 
   if (share_resources_) {
     g_all_shared_contexts.Pointer()->insert(this);
   }
 
   return true;
 }
 
 void InProcessCommandBuffer::Destroy() {
   base::WaitableEvent completion(true, false);
-  bool result;
+  bool result = false;
   base::Callback<bool(void)> destroy_task = base::Bind(
       &InProcessCommandBuffer::DestroyOnGpuThread, base::Unretained(this));
   QueueTask(
       base::Bind(&RunTaskWithResult<bool>, destroy_task, &result, &completion));
   completion.Wait();
 }
 
 bool InProcessCommandBuffer::DestroyOnGpuThread() {
   command_buffer_.reset();
   // Clean up GL resources if possible.
@@ skipping 227 matching lines @@
   g_uses_explicit_scheduling = true;
   g_gpu_queue.Get().SetScheduleCallback(callback);
 }
 
 // static
 void InProcessCommandBuffer::ProcessGpuWorkOnCurrentThread() {
   g_gpu_queue.Get().RunTasks();
 }
 
 }  // namespace gpu