Fix nits in content/browser/appcache/

content/browser/appcache/appcache_update_job.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 CONTENT_BROWSER_APPCACHE_APPCACHE_UPDATE_JOB_H_
 #define CONTENT_BROWSER_APPCACHE_APPCACHE_UPDATE_JOB_H_
 
 #include <deque>
 #include <map>
 #include <set>
@@ skipping 12 matching lines @@
 #include "content/common/content_export.h"
 #include "net/base/completion_callback.h"
 #include "net/http/http_response_headers.h"
 #include "net/url_request/url_request.h"
 #include "url/gurl.h"
 
 namespace content {
 FORWARD_DECLARE_TEST(AppCacheGroupTest, QueueUpdate);
 class AppCacheGroupTest;
 class AppCacheUpdateJobTest;
-}
-
-namespace content {
-
 class HostNotifier;
 
 // Application cache Update algorithm and state.
 class CONTENT_EXPORT AppCacheUpdateJob
     : public AppCacheStorage::Delegate,
       public AppCacheHost::Observer,
       public AppCacheServiceImpl::Observer {
  public:
   // Used for uma stats only for now, so new values are append only.
   enum ResultType {
@@ skipping 296 matching lines @@
   AppCacheStorage* storage_;
 
   FRIEND_TEST_ALL_PREFIXES(content::AppCacheGroupTest, QueueUpdate);
 
   DISALLOW_COPY_AND_ASSIGN(AppCacheUpdateJob);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_APPCACHE_APPCACHE_UPDATE_JOB_H_