Remove the happens-before annotations from base/memory/singleton.h

content/browser/gamepad/gamepad_provider.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 <cmath>
 #include <set>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/message_loop/message_loop_proxy.h"
+#include "base/third_party/dynamic_annotations/dynamic_annotations.h"
 #include "base/threading/thread.h"
 #include "base/threading/thread_restrictions.h"
 #include "content/browser/gamepad/gamepad_data_fetcher.h"
 #include "content/browser/gamepad/gamepad_platform_data_fetcher.h"
 #include "content/browser/gamepad/gamepad_provider.h"
 #include "content/browser/gamepad/gamepad_service.h"
 #include "content/common/gamepad_hardware_buffer.h"
 #include "content/common/gamepad_messages.h"
 #include "content/common/gamepad_user_gesture.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 296 matching lines @@
   }
   if (!had_gesture_before && ever_had_user_gesture_) {
     // Initialize pad_states_ for the first time.
     for (size_t i = 0; i < WebGamepads::itemsLengthCap; ++i) {
       pad_states_.get()[i].SetPad(pads.items[i]);
     }
   }
 }
 
 }  // namespace content