Revert 276939 "Decouple IPC::MessageFilter from IPC::Channel"

ppapi/proxy/plugin_message_filter.cc

Index: ppapi/proxy/plugin_message_filter.cc
===================================================================
--- ppapi/proxy/plugin_message_filter.cc	(revision 278168)
+++ ppapi/proxy/plugin_message_filter.cc	(working copy)
@@ -23,18 +23,18 @@
     scoped_refptr<ResourceReplyThreadRegistrar> registrar)
     : seen_instance_ids_(seen_instance_ids),
       resource_reply_thread_registrar_(registrar),
-      sender_(NULL) {
+      channel_(NULL) {
 }
 
 PluginMessageFilter::~PluginMessageFilter() {
 }
 
-void PluginMessageFilter::OnFilterAdded(IPC::Sender* sender) {
-  sender_ = sender;
+void PluginMessageFilter::OnFilterAdded(IPC::Channel* channel) {
+  channel_ = channel;
 }
 
 void PluginMessageFilter::OnFilterRemoved() {
-  sender_ = NULL;
+  channel_ = NULL;
 }
 
 bool PluginMessageFilter::OnMessageReceived(const IPC::Message& message) {
@@ -48,8 +48,8 @@
 }
 
 bool PluginMessageFilter::Send(IPC::Message* msg) {
-  if (sender_)
-    return sender_->Send(msg);
+  if (channel_)
+    return channel_->Send(msg);
   delete msg;
   return false;
 }