Decouple IPC::MessageFilter from IPC::Channel

content/browser/renderer_host/render_message_filter.cc

Index: content/browser/renderer_host/render_message_filter.cc
diff --git a/content/browser/renderer_host/render_message_filter.cc b/content/browser/renderer_host/render_message_filter.cc
index 780d930fb1b522303c03b22719aa15fd3c55cbdc..af813bd5475807109869641970201ef2339fcf82 100644
--- a/content/browser/renderer_host/render_message_filter.cc
+++ b/content/browser/renderer_host/render_message_filter.cc
@@ -333,7 +333,7 @@ RenderMessageFilter::~RenderMessageFilter() {
   DCHECK(plugin_host_clients_.empty());
 }
 
-void RenderMessageFilter::OnChannelClosing() {
+void RenderMessageFilter::OnSenderClosing() {
   HostSharedBitmapManager::current()->ProcessRemoved(PeerHandle());
 #if defined(ENABLE_PLUGINS)
   for (std::set<OpenChannelToNpapiPluginCallback*>::iterator it =
@@ -354,7 +354,7 @@ void RenderMessageFilter::OnChannelClosing() {
   plugin_host_clients_.clear();
 }
 
-void RenderMessageFilter::OnChannelConnected(int32 peer_id) {
+void RenderMessageFilter::OnSenderConnected() {
   base::ProcessHandle handle = PeerHandle();
 #if defined(OS_MACOSX)
   process_metrics_.reset(base::ProcessMetrics::CreateProcessMetrics(handle,