Decouple IPC::MessageFilter from IPC::Channel

chrome/browser/speech/tts_message_filter.cc

Index: chrome/browser/speech/tts_message_filter.cc
diff --git a/chrome/browser/speech/tts_message_filter.cc b/chrome/browser/speech/tts_message_filter.cc
index 789eac31f6a9003337cfa07a768c8f28d1ae0884..96b2b922898ee637f505696b1eb8f350b481bd8c 100644
--- a/chrome/browser/speech/tts_message_filter.cc
+++ b/chrome/browser/speech/tts_message_filter.cc
@@ -48,10 +48,10 @@ bool TtsMessageFilter::OnMessageReceived(const IPC::Message& message) {
   return handled;
 }
 
-void TtsMessageFilter::OnChannelClosing() {
+void TtsMessageFilter::OnSenderClosing() {
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
-      base::Bind(&TtsMessageFilter::OnChannelClosingInUIThread, this));
+      base::Bind(&TtsMessageFilter::OnSenderClosingInUIThread, this));
 }
 
 void TtsMessageFilter::OnInitializeVoiceList() {
@@ -153,7 +153,7 @@ void TtsMessageFilter::OnVoicesChanged() {
   OnInitializeVoiceList();
 }
 
-void TtsMessageFilter::OnChannelClosingInUIThread() {
+void TtsMessageFilter::OnSenderClosingInUIThread() {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   TtsController::GetInstance()->RemoveVoicesChangedDelegate(this);
 }