Decouple IPC::MessageFilter from IPC::Channel

content/renderer/pepper/pepper_hung_plugin_filter.cc

Index: content/renderer/pepper/pepper_hung_plugin_filter.cc
diff --git a/content/renderer/pepper/pepper_hung_plugin_filter.cc b/content/renderer/pepper/pepper_hung_plugin_filter.cc
index 57fc4a6af94b7746193c6b5309c6ae7b23838620..6c6706da109bedcfc78609ea76a3f1e651da4cad 100644
--- a/content/renderer/pepper/pepper_hung_plugin_filter.cc
+++ b/content/renderer/pepper/pepper_hung_plugin_filter.cc
@@ -55,14 +55,14 @@ void PepperHungPluginFilter::EndBlockOnSyncMessage() {
   MayHaveBecomeUnhung();
 }
 
-void PepperHungPluginFilter::OnFilterAdded(IPC::Channel* channel) {}
+void PepperHungPluginFilter::OnFilterAdded(IPC::Sender* sender) {}
 
 void PepperHungPluginFilter::OnFilterRemoved() {
   base::AutoLock lock(lock_);
   MayHaveBecomeUnhung();
 }
 
-void PepperHungPluginFilter::OnChannelError() {
+void PepperHungPluginFilter::OnSenderError() {
   base::AutoLock lock(lock_);
   MayHaveBecomeUnhung();
 }