Decouple IPC::MessageFilter from IPC::Channel

chrome/browser/prerender/prerender_message_filter.cc

Index: chrome/browser/prerender/prerender_message_filter.cc
diff --git a/chrome/browser/prerender/prerender_message_filter.cc b/chrome/browser/prerender/prerender_message_filter.cc
index 14b6beb8ec7b931273ce93c0a0424447e8fac216..f13538e62bc5e78c685ffb64f09824c860846ae3 100644
--- a/chrome/browser/prerender/prerender_message_filter.cc
+++ b/chrome/browser/prerender/prerender_message_filter.cc
@@ -16,7 +16,7 @@ using content::BrowserThread;
 
 namespace {
 
-void OnChannelClosingInUIThread(Profile* profile, int render_process_id) {
+void OnSenderClosingInUIThread(Profile* profile, int render_process_id) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   if (!g_browser_process->profile_manager()->IsValidProfile(profile))
     return;
@@ -24,7 +24,7 @@ void OnChannelClosingInUIThread(Profile* profile, int render_process_id) {
       prerender::PrerenderLinkManagerFactory::GetForProfile(profile);
   if (!prerender_link_manager)
     return;
-  prerender_link_manager->OnChannelClosing(render_process_id);
+  prerender_link_manager->OnSenderClosing(render_process_id);
 }
 
 }  // namespace
@@ -64,10 +64,10 @@ void PrerenderMessageFilter::OverrideThreadForMessage(
   }
 }
 
-void PrerenderMessageFilter::OnChannelClosing() {
+void PrerenderMessageFilter::OnSenderClosing() {
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
-      base::Bind(&OnChannelClosingInUIThread, profile_, render_process_id_));
+      base::Bind(&OnSenderClosingInUIThread, profile_, render_process_id_));
 }
 
 void PrerenderMessageFilter::OnAddPrerender(