Migrating majority of gamepad from content/browser/ to device/

content/common/gamepad_user_gesture.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/common/gamepad_user_gesture.h"
-
-#include <math.h>
-
-#include <algorithm>
-
-#include "third_party/WebKit/public/platform/WebGamepads.h"
-
-namespace {
-// A big enough deadzone to detect accidental presses.
-const float kAxisMoveAmountThreshold = 0.5;
-}
-
-namespace content {
-
-bool GamepadsHaveUserGesture(const blink::WebGamepads& gamepads) {
-  for (unsigned int i = 0; i < blink::WebGamepads::itemsLengthCap; i++) {
-    const blink::WebGamepad& pad = gamepads.items[i];
-
-    // If the device is physically connected, then check the buttons and axes
-    // to see if there is currently an intentional user action.
-    if (pad.connected) {
-      for (unsigned int button_index = 0; button_index < pad.buttonsLength;
-           button_index++) {
-        if (pad.buttons[button_index].pressed)
-          return true;
-      }
-
-      for (unsigned int axes_index = 0; axes_index < pad.axesLength;
-           axes_index++) {
-        if (fabs(pad.axes[axes_index]) > kAxisMoveAmountThreshold)
-          return true;
-      }
-    }
-  }
-  return false;
-}
-
-}  // namespace content