Use non-exclusive access to gamepad on mac

content/browser/gamepad/platform_data_fetcher_mac.mm

 // 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/browser/gamepad/platform_data_fetcher_mac.h"
 
 #include "base/mac/foundation_util.h"
 #include "base/memory/scoped_nsobject.h"
 #include "base/string16.h"
 #include "base/string_util.h"
@@ skipping 68 matching lines @@
       hid_manager_ref_,
       ValueChangedCallback,
       this);
 
   IOHIDManagerScheduleWithRunLoop(
       hid_manager_ref_,
       CFRunLoopGetMain(),
       kCFRunLoopDefaultMode);
 
   enabled_ = IOHIDManagerOpen(hid_manager_ref_,
-                              kIOHIDOptionsTypeSeizeDevice) == kIOReturnSuccess;
+                              kIOHIDOptionsTypeNone) == kIOReturnSuccess;
 }
 
 void GamepadPlatformDataFetcherMac::UnregisterFromNotifications() {
   IOHIDManagerUnscheduleFromRunLoop(
       hid_manager_ref_,
       CFRunLoopGetCurrent(),
       kCFRunLoopDefaultMode);
   IOHIDManagerClose(hid_manager_ref_, kIOHIDOptionsTypeNone);
 }
 
@@ skipping 204 matching lines @@
   pads->length = data_.length;
   for (size_t i = 0; i < WebKit::WebGamepads::itemsLengthCap; ++i) {
     if (associated_[i].mapper)
       associated_[i].mapper(data_.items[i], &pads->items[i]);
     else
       pads->items[i] = data_.items[i];
   }
 }
 
 }  // namespace content