Gamepad API: add support for connection events

content/browser/renderer_host/render_process_host_impl.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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 802 matching lines @@
       browser_context->GetRequestContextForRenderProcess(GetID())));
 #endif
 
   AddFilter(new TraceMessageFilter());
   AddFilter(new ResolveProxyMsgHelper(
       browser_context->GetRequestContextForRenderProcess(GetID())));
   AddFilter(new QuotaDispatcherHost(
       GetID(),
       storage_partition_impl_->GetQuotaManager(),
       GetContentClient()->browser()->CreateQuotaPermissionContext()));
-  AddFilter(new GamepadBrowserMessageFilter());
+  AddFilter(new GamepadBrowserMessageFilter(this));
   AddFilter(new DeviceMotionMessageFilter());
   AddFilter(new DeviceOrientationMessageFilter());
   AddFilter(new ProfilerMessageFilter(PROCESS_TYPE_RENDERER));
   AddFilter(new HistogramMessageFilter());
 #if defined(USE_TCMALLOC) && (defined(OS_LINUX) || defined(OS_ANDROID))
   if (CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kEnableMemoryBenchmarking))
     AddFilter(new MemoryBenchmarkMessageFilter());
 #endif
   AddFilter(new VibrationMessageFilter());
@@ skipping 1297 matching lines @@
 
 void RenderProcessHostImpl::DecrementWorkerRefCount() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK_GT(worker_ref_count_, 0);
   --worker_ref_count_;
   if (worker_ref_count_ == 0)
     Cleanup();
 }
 
 }  // namespace content