Move ExtensionPrefs and friends to extensions/ directory.

chrome/browser/extensions/chrome_app_sorting_unittest.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/extensions/chrome_app_sorting.h"
 
 #include <map>
 
-#include "chrome/browser/extensions/extension_prefs_unittest.h"
+#include "chrome/browser/extensions/./extension_prefs_unittest.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "extensions/common/manifest_constants.h"
 #include "sync/api/string_ordinal.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace extensions {
 
 namespace keys = manifest_keys;
 
 class ChromeAppSortingTest : public ExtensionPrefsTest {
@@ skipping 933 matching lines @@
   }
 
  private:
   scoped_refptr<Extension> other_app_;
   scoped_refptr<Extension> yet_another_app_;
 };
 TEST_F(ChromeAppSortingDefaultOrdinalNoCollision,
        ChromeAppSortingDefaultOrdinalNoCollision) {}
 
 }  // namespace extensions