Handle UI operations through gamepad

content/public/android/java/src/org/chromium/content/browser/input/GamepadList.java

 // Copyright 2014 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.
 
 package org.chromium.content.browser.input;
 
 import android.annotation.SuppressLint;
 import android.content.Context;
 import android.hardware.input.InputManager;
 import android.hardware.input.InputManager.InputDeviceListener;
@@ skipping 279 matching lines @@
                 }
             }
         }
     }
 
     @CalledByNative
     static void notifyForGamepadsAccess(boolean isAccessPaused) {
         getInstance().setIsGamepadAccessed(!isAccessPaused);
     }
 
+    public static boolean isGamepadAccessed() {
+        return getInstance().mIsGamepadAccessed;

[jdduke (slow), 2015/08/07 18:19:30]

Can you move this method up below "isGamepadEvent", and also add a Javadoc?
Ideally it would describe what it means to be "accessed", i.e., "@return whether
the HTML5 gamepad API is active" or something like that.

+    }
     private void setIsGamepadAccessed(boolean isGamepadAccessed) {
         synchronized (mLock) {
             mIsGamepadAccessed = isGamepadAccessed;
             if (isGamepadAccessed) {
                 for (int i = 0; i < MAX_GAMEPADS; i++) {
                     GamepadDevice gamepadDevice = getDevice(i);
                     if (gamepadDevice == null) continue;
                     gamepadDevice.clearData();
                 }
             }
         }
     }
 
     private native void nativeSetGamepadData(long webGamepadsPtr, int index, boolean mapping,
             boolean connected, String devicename, long timestamp, float[] axes, float[] buttons);
 
     private static class LazyHolder {
         private static final GamepadList INSTANCE = new GamepadList();
     }
 
 }