Gamepad: add test support for page visibility behavior

content/renderer/gamepad_shared_memory_reader.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/renderer/gamepad_shared_memory_reader.h"
 
 #include "base/debug/trace_event.h"
 #include "base/metrics/histogram.h"
+#include "content/common/gamepad_hardware_buffer.h"
 #include "content/common/gamepad_user_gesture.h"
 #include "content/public/renderer/render_thread.h"
-#include "content/common/gamepad_hardware_buffer.h"
+#include "content/renderer/renderer_webkitplatformsupport_impl.h"
 #include "ipc/ipc_sync_message_filter.h"
 #include "third_party/WebKit/public/platform/WebGamepadListener.h"
 
 namespace content {
 
-GamepadSharedMemoryReader::GamepadSharedMemoryReader()
+GamepadSharedMemoryReader::GamepadSharedMemoryReader(
+    RendererWebKitPlatformSupportImpl* webkit_platform_support)
     : gamepad_hardware_buffer_(NULL),
       gamepad_listener_(NULL),
       is_polling_(false),
       ever_interacted_with_(false) {
+  webkit_platform_support->set_gamepad_provider(this);
 }
 
 void GamepadSharedMemoryReader::StartPollingIfNecessary() {
   if (is_polling_)
     return;
 
   CHECK(RenderThread::Get()->Send(new GamepadHostMsg_StartPolling(
       &renderer_shared_memory_handle_)));
 
   // If we don't get a valid handle from the browser, don't try to Map (we're
@@ skipping 116 matching lines @@
 }
 
 void GamepadSharedMemoryReader::OnGamepadDisconnected(
     int index,
     const blink::WebGamepad& gamepad) {
   if (gamepad_listener_)
     gamepad_listener_->didDisconnectGamepad(index, gamepad);
 }
 
 } // namespace content