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

ipc/ipc_sync_channel_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ipc/ipc_sync_channel.h"
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 916 matching lines @@
 class TestSyncMessageFilter : public SyncMessageFilter {
  public:
   TestSyncMessageFilter(base::WaitableEvent* shutdown_event,
                         Worker* worker,
                         scoped_refptr<base::MessageLoopProxy> message_loop)
       : SyncMessageFilter(shutdown_event),
         worker_(worker),
         message_loop_(message_loop) {
   }
 
-  virtual void OnFilterAdded(Sender* sender) OVERRIDE {
-    SyncMessageFilter::OnFilterAdded(sender);
+  virtual void OnFilterAdded(Channel* channel) OVERRIDE {
+    SyncMessageFilter::OnFilterAdded(channel);
     message_loop_->PostTask(
         FROM_HERE,
         base::Bind(&TestSyncMessageFilter::SendMessageOnHelperThread, this));
   }
 
   void SendMessageOnHelperThread() {
     int answer = 0;
     bool result = Send(new SyncChannelTestMsg_AnswerToLife(&answer));
     DCHECK(result);
     DCHECK_EQ(answer, 42);
@@ skipping 837 matching lines @@
 }
 
 // Windows needs to send an out-of-band secret to verify the client end of the
 // channel. Test that we still connect correctly in that case.
 TEST_F(IPCSyncChannelTest, Verified) {
   Verified();
 }
 
 }  // namespace
 }  // namespace IPC