Cleanup: Remove unneeded forward declarations from various chrome subdirectories.

chrome/test/base/testing_profile.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 CHROME_TEST_BASE_TESTING_PROFILE_H_
 #define CHROME_TEST_BASE_TESTING_PROFILE_H_
 #pragma once
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/scoped_temp_dir.h"
 #include "base/timer.h"
 #include "chrome/browser/profiles/profile.h"
 #include "content/browser/appcache/chrome_appcache_service.h"
 
-namespace content {
-class ResourceContextGetter;
-}
-
 namespace history {
 class TopSites;
 }
 
 namespace net {
 class CookieMonster;
 }
 
 namespace quota {
 class SpecialStoragePolicy;
 }
 
 class AutocompleteClassifier;
 class BookmarkModel;
 class CommandLine;
 class ExtensionPrefs;
-class ExtensionPrefStore;
 class ExtensionPrefValueMap;
 class ExtensionSpecialStoragePolicy;
 class FaviconService;
 class FindBarState;
 class GeolocationPermissionContext;
 class HistoryService;
 class HostContentSettingsMap;
 class PrefService;
 class ProfileDependencyManager;
 class ProfileSyncService;
 class SpeechInputPreferences;
 class TemplateURLService;
 class TestingPrefService;
-class ThemeService;
 class WebKitContext;
 
 namespace net {
 class URLRequestContextGetter;
 }
 
 class TestingProfile : public Profile {
  public:
   // Default constructor that cannot be used with multi-profiles.
   TestingProfile();
@@ skipping 345 matching lines @@
   // testing.
   ProfileDependencyManager* profile_dependency_manager_;
 
   scoped_refptr<ChromeAppCacheService> appcache_service_;
 
   // The QuotaManager, only available if set explicitly via SetQuotaManager.
   scoped_refptr<quota::QuotaManager> quota_manager_;
 };
 
 #endif  // CHROME_TEST_BASE_TESTING_PROFILE_H_