Decouple IPC::MessageFilter from IPC::Channel

content/browser/fileapi/fileapi_message_filter.cc

Index: content/browser/fileapi/fileapi_message_filter.cc
diff --git a/content/browser/fileapi/fileapi_message_filter.cc b/content/browser/fileapi/fileapi_message_filter.cc
index 2eb601a7c6deaf2eda2cfc3ce7cb1d17c249b84c..836454f685b74d1f13fe68fd1dfa98ebebdc0a77 100644
--- a/content/browser/fileapi/fileapi_message_filter.cc
+++ b/content/browser/fileapi/fileapi_message_filter.cc
@@ -104,7 +104,7 @@ FileAPIMessageFilter::FileAPIMessageFilter(
   DCHECK(stream_context);
 }
 
-void FileAPIMessageFilter::OnChannelConnected(int32 peer_pid) {
+void FileAPIMessageFilter::OnSenderConnected() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   if (request_context_getter_.get()) {
@@ -120,7 +120,7 @@ void FileAPIMessageFilter::OnChannelConnected(int32 peer_pid) {
   operation_runner_ = context_->CreateFileSystemOperationRunner();
 }
 
-void FileAPIMessageFilter::OnChannelClosing() {
+void FileAPIMessageFilter::OnSenderClosing() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   // Unregister all the blob and stream URLs that are previously registered in