Remove logging.h from cc files that don't use it.

chrome/renderer/mock_render_thread.cc

 // Copyright (c) 2008 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 "chrome/renderer/mock_render_thread.h"
 
-#include "base/logging.h"
 #include "chrome/common/ipc_message_utils.h"
 #include "chrome/common/render_messages.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 MockRenderThread::MockRenderThread()
     : routing_id_(0),
       opener_id_(0),
       widget_(NULL),
       reply_deserializer_(NULL) {
 }
@@ skipping 58 matching lines @@
   IPC_END_MESSAGE_MAP_EX()
 }
 
 // The Widget expects to be returned valid route_id.
 void MockRenderThread::OnMsgCreateWidget(int opener_id,
                                          bool activatable,
                                          int* route_id) {
   opener_id_ = opener_id;
   *route_id = routing_id_;
 }