Revert of Gamepad API support for chrome on android

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"
@@ skipping 113 matching lines @@
   CHECK(res);
   GamepadHardwareBuffer* hwbuf = SharedMemoryAsHardwareBuffer();
   memset(hwbuf, 0, sizeof(GamepadHardwareBuffer));
   pad_states_.reset(new PadState[WebGamepads::itemsLengthCap]);
 
   polling_thread_.reset(new base::Thread("Gamepad polling thread"));
 #if defined(OS_LINUX)
   // On Linux, the data fetcher needs to watch file descriptors, so the message
   // loop needs to be a libevent loop.
   const base::MessageLoop::Type kMessageLoopType = base::MessageLoop::TYPE_IO;
-#elif defined(OS_ANDROID)
-  // On Android, keeping a message loop of default type.
-  const base::MessageLoop::Type kMessageLoopType =
-      base::MessageLoop::TYPE_DEFAULT;
 #else
   // On Mac, the data fetcher uses IOKit which depends on CFRunLoop, so the
   // message loop needs to be a UI-type loop. On Windows it must be a UI loop
   // to properly pump the MessageWindow that captures device state.
   const base::MessageLoop::Type kMessageLoopType = base::MessageLoop::TYPE_UI;
 #endif
   polling_thread_->StartWithOptions(base::Thread::Options(kMessageLoopType, 0));
 
   polling_thread_->message_loop()->PostTask(
       FROM_HERE,
@@ skipping 164 matching lines @@
     ever_had_user_gesture_ = true;
     for (size_t i = 0; i < user_gesture_observers_.size(); i++) {
       user_gesture_observers_[i].message_loop->PostTask(FROM_HERE,
           user_gesture_observers_[i].closure);
     }
     user_gesture_observers_.clear();
   }
 }
 
 }  // namespace content