Final batch adding real histogram values for extension events.

chrome/browser/extensions/api/sync_file_system/extension_sync_event_observer.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_SYNC_FILE_SYSTEM_EXTENSION_SYNC_EVENT_OBSERVER_H_
 #define CHROME_BROWSER_EXTENSIONS_API_SYNC_FILE_SYSTEM_EXTENSION_SYNC_EVENT_OBSERVER_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 #include "chrome/browser/sync_file_system/sync_event_observer.h"
 #include "extensions/browser/browser_context_keyed_api_factory.h"
+#include "extensions/browser/extension_event_histogram_value.h"
 
 namespace content {
 class BrowserContext;
 }
 
 namespace sync_file_system {
 class SyncFileSystemService;
 }
 
 namespace extensions {
@@ skipping 35 matching lines @@
   // BrowserContextKeyedAPI implementation.
   static const char* service_name() { return "ExtensionSyncEventObserver"; }
   static const bool kServiceIsCreatedWithBrowserContext = false;
 
   content::BrowserContext* browser_context_;
 
   // Not owned. If not null, then this is registered to SyncFileSystemService.
   sync_file_system::SyncFileSystemService* sync_service_;
 
   void BroadcastOrDispatchEvent(const GURL& app_origin,
+                                events::HistogramValue histogram_value,
                                 const std::string& event_name,
                                 scoped_ptr<base::ListValue> value);
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionSyncEventObserver);
 };
 
 template <>
 void BrowserContextKeyedAPIFactory<
     ExtensionSyncEventObserver>::DeclareFactoryDependencies();
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SYNC_FILE_SYSTEM_EXTENSION_SYNC_EVENT_OBSERVER_H_