Fix nits in content/browser/appcache/

content/browser/appcache/appcache_group.h

 // Copyright (c) 2011 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 CONTENT_BROWSER_APPCACHE_APPCACHE_GROUP_H_
 #define CONTENT_BROWSER_APPCACHE_APPCACHE_GROUP_H_
 
 #include <map>
 #include <vector>
 
 #include "base/cancelable_callback.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "base/time/time.h"
 #include "content/common/content_export.h"
 #include "url/gurl.h"
 
 namespace content {
 FORWARD_DECLARE_TEST(AppCacheGroupTest, StartUpdate);
 FORWARD_DECLARE_TEST(AppCacheGroupTest, CancelUpdate);
 FORWARD_DECLARE_TEST(AppCacheGroupTest, QueueUpdate);
 FORWARD_DECLARE_TEST(AppCacheUpdateJobTest, AlreadyChecking);
 FORWARD_DECLARE_TEST(AppCacheUpdateJobTest, AlreadyDownloading);
-class AppCacheUpdateJobTest;
-class MockAppCacheStorage;
-}
-
-namespace content {
-
 class AppCache;
 class AppCacheHost;
 class AppCacheStorage;
 class AppCacheUpdateJob;
+class AppCacheUpdateJobTest;
 class HostObserver;
+class MockAppCacheStorage;
 
 // Collection of application caches identified by the same manifest URL.
 // A group exists as long as it is in use by a host or is being updated.
 class CONTENT_EXPORT AppCacheGroup
     : public base::RefCounted<AppCacheGroup> {
  public:
 
   class CONTENT_EXPORT UpdateObserver {
     public:
       // Called just after an appcache update has completed.
@@ skipping 121 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(content::AppCacheGroupTest, QueueUpdate);
   FRIEND_TEST_ALL_PREFIXES(content::AppCacheUpdateJobTest, AlreadyChecking);
   FRIEND_TEST_ALL_PREFIXES(content::AppCacheUpdateJobTest, AlreadyDownloading);
 
   DISALLOW_COPY_AND_ASSIGN(AppCacheGroup);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_APPCACHE_APPCACHE_GROUP_H_