Split ExtensionSystem interface from ExtensionSystemImpl implementation, part 1.

chrome/browser/feedback/system_logs/log_sources/chrome_internal_log_source.cc

 // Copyright 2013 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/browser/feedback/system_logs/log_sources/chrome_internal_log_source.h"
 
 #include "base/json/json_string_value_serializer.h"
 #include "base/sys_info.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/extension_service.h"
-#include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/sync/about_sync_util.h"
 #include "chrome/browser/sync/profile_sync_service_factory.h"
 #include "chrome/browser/ui/webui/crashes_ui.h"
 #include "chrome/common/chrome_version_info.h"
 #include "content/public/browser/browser_thread.h"
+#include "extensions/browser/extension_system.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/extension_set.h"
 
 
 namespace {
 
 const char kSyncDataKey[] = "about_sync_data";
 const char kExtensionsListKey[] = "extensions";
 const char kChromeVersionTag[] = "CHROME VERSION";
 #if !defined(OS_CHROMEOS)
@@ skipping 92 matching lines @@
     }
   }
   if (!extensions_list.empty())
     extensions_list += "\n";
 
   if (!extensions_list.empty())
     (*response)[kExtensionsListKey] = extensions_list;
 }
 
 }  // namespace system_logs