Add ChildMessageFilter, a base class for renderer/worker cross-thread MessageFilter

content/child/child_thread.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/child/child_thread.h"
 
 #include <string>
 
 #include "base/allocator/allocator_extension.h"
 #include "base/base_switches.h"
@@ skipping 183 matching lines @@
   quota_message_filter_ =
       new QuotaMessageFilter(thread_safe_sender_.get());
   quota_dispatcher_.reset(new QuotaDispatcher(thread_safe_sender_.get(),
                                               quota_message_filter_.get()));
 
   channel_->AddFilter(histogram_message_filter_.get());
   channel_->AddFilter(sync_message_filter_.get());
   channel_->AddFilter(new tracing::ChildTraceMessageFilter(
       ChildProcess::current()->io_message_loop_proxy()));
   channel_->AddFilter(resource_message_filter_.get());
-  channel_->AddFilter(quota_message_filter_.get());
-  channel_->AddFilter(service_worker_message_filter_.get());
+  channel_->AddFilter(quota_message_filter_->GetFilter());
+  channel_->AddFilter(service_worker_message_filter_->GetFilter());
 
   // In single process mode we may already have a power monitor
   if (!base::PowerMonitor::Get()) {
     scoped_ptr<PowerMonitorBroadcastSource> power_monitor_source(
       new PowerMonitorBroadcastSource());
     channel_->AddFilter(power_monitor_source->GetMessageFilter());
 
     power_monitor_.reset(new base::PowerMonitor(
         power_monitor_source.PassAs<base::PowerMonitorSource>()));
   }
@@ skipping 41 matching lines @@
       ::HeapProfilerStop,
       ::GetHeapProfile));
 #endif
 }
 
 ChildThread::~ChildThread() {
 #ifdef IPC_MESSAGE_LOG_ENABLED
   IPC::Logging::GetInstance()->SetIPCSender(NULL);
 #endif
 
-  channel_->RemoveFilter(service_worker_message_filter_.get());
-  channel_->RemoveFilter(quota_message_filter_.get());
   channel_->RemoveFilter(histogram_message_filter_.get());
   channel_->RemoveFilter(sync_message_filter_.get());
 
   // The ChannelProxy object caches a pointer to the IPC thread, so need to
   // reset it as it's not guaranteed to outlive this object.
   // NOTE: this also has the side-effect of not closing the main IPC channel to
   // the browser process.  This is needed because this is the signal that the
   // browser uses to know that this process has died, so we need it to be alive
   // until this process is shut down, and the OS closes the handle
   // automatically.  We used to watch the object handle on Windows to do this,
@@ skipping 210 matching lines @@
   // inflight that would addref it.
   Send(new ChildProcessHostMsg_ShutdownRequest);
 }
 
 void ChildThread::EnsureConnected() {
   LOG(INFO) << "ChildThread::EnsureConnected()";
   base::KillProcess(base::GetCurrentProcessHandle(), 0, false);
 }
 
 }  // namespace content