Decouple IPC::MessageFilter from IPC::Channel

content/child/threaded_data_provider.cc

Index: content/child/threaded_data_provider.cc
diff --git a/content/child/threaded_data_provider.cc b/content/child/threaded_data_provider.cc
index 84fa65402594b1a9b6d63ab7650a35809f3d41df..96145c27e23632947f9b5c48a3665e18851a1abb 100644
--- a/content/child/threaded_data_provider.cc
+++ b/content/child/threaded_data_provider.cc
@@ -31,7 +31,7 @@ class DataProviderMessageFilter : public IPC::MessageFilter {
       int request_id);
 
   // IPC::ChannelProxy::MessageFilter
-  virtual void OnFilterAdded(IPC::Channel* channel) OVERRIDE FINAL;
+  virtual void OnFilterAdded(IPC::Sender* sender) OVERRIDE FINAL;
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE FINAL;
 
  private:
@@ -70,7 +70,7 @@ DataProviderMessageFilter::DataProviderMessageFilter(
   DCHECK(main_thread_message_loop != NULL);
 }
 
-void DataProviderMessageFilter::OnFilterAdded(IPC::Channel* channel) {
+void DataProviderMessageFilter::OnFilterAdded(IPC::Sender* sender) {
   DCHECK(io_message_loop_->BelongsToCurrentThread());
 
   main_thread_message_loop_->PostTask(FROM_HERE,