Revert "Send input event IPCs directly from the UI thread"

content/public/test/mock_render_process_host.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 "content/public/test/mock_render_process_host.h"
 
 #include <algorithm>
 #include <utility>
 #include <vector>
 
@@ skipping 224 matching lines @@
   return browser_context_;
 }
 
 bool MockRenderProcessHost::InSameStoragePartition(
     StoragePartition* partition) const {
   // Mock RPHs only have one partition.
   return true;
 }
 
 IPC::ChannelProxy* MockRenderProcessHost::GetChannel() {
-  return nullptr;
-}
-
-IPC::Sender* MockRenderProcessHost::GetImmediateSender() {
-  return this;
-}
-
-IPC::Sender* MockRenderProcessHost::GetIOThreadSender() {
-  return this;
+  return NULL;
 }
 
 void MockRenderProcessHost::AddFilter(BrowserMessageFilter* filter) {
 }
 
 bool MockRenderProcessHost::FastShutdownForPageCount(size_t count) {
   if (GetActiveViewCount() == count)
     return FastShutdownIfPossible();
   return false;
 }
@@ skipping 115 matching lines @@
   for (ScopedVector<MockRenderProcessHost>::iterator it = processes_.begin();
        it != processes_.end(); ++it) {
     if (*it == host) {
       processes_.weak_erase(it);
       break;
     }
   }
 }
 
 }  // namespace content