Reapplies all the IPC system work (reverts the revert r56272).

chrome/renderer/render_thread.cc

 // Copyright (c) 2010 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/render_thread.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/field_trial.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/nullable_string16.h"
 #include "base/process_util.h"
 #include "base/shared_memory.h"
 #include "base/stats_table.h"
 #include "base/string_util.h"
 #include "base/task.h"
 #include "base/thread_local.h"
 #include "base/trace_event.h"
 #include "base/utf_string_conversions.h"
+#include "base/values.h"
 #include "chrome/common/appcache/appcache_dispatcher.h"
 #include "chrome/common/child_process_logging.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/db_message_filter.h"
 #include "chrome/common/dom_storage_common.h"
 #include "chrome/common/extensions/extension_extent.h"
 #include "chrome/common/plugin_messages.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/renderer_preferences.h"
 #include "chrome/common/url_constants.h"
@@ skipping 1053 matching lines @@
 }
 
 std::string RenderThread::GetExtensionIdByBrowseExtent(const GURL& url) {
   for (size_t i = 0; i < extension_extents_.size(); ++i) {
     if (extension_extents_[i].browse_extent.ContainsURL(url))
       return extension_extents_[i].extension_id;
   }
 
   return std::string();
 }