Move Extension into extensions namespace

chrome/browser/sync/glue/theme_util.h

 // Copyright (c) 2010 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_SYNC_GLUE_THEME_UTIL_H_
 #define CHROME_BROWSER_SYNC_GLUE_THEME_UTIL_H_
 #pragma once
 
+class Profile;
+
+namespace extensions {
 class Extension;
-class Profile;
+}
 
 namespace sync_pb {
 class ThemeSpecifics;
 }  // sync_pb
 
 namespace browser_sync {
 
 extern const char kCurrentThemeClientTag[];
 
 // Returns true iff two ThemeSpecifics indicate the same theme.
@@ skipping 13 matching lines @@
     Profile* profile);
 
 // Sets all fields of the given ThemeSpecifics according to the
 // current theme.
 void GetThemeSpecificsFromCurrentTheme(
     Profile* profile,
     sync_pb::ThemeSpecifics* theme_specifics);
 
 // Exposed only for testing.
 void GetThemeSpecificsFromCurrentThemeHelper(
-    const Extension* current_theme,
+    const extensions::Extension* current_theme,
     bool is_system_theme_distinct_from_default_theme,
     bool use_system_theme_by_default,
     sync_pb::ThemeSpecifics* theme_specifics);
 
 // Like SetChrrentThemeFromThemeSpecifics() except does nothing if the
 // current theme is equivalent to that described by theme_specifics.
 void SetCurrentThemeFromThemeSpecificsIfNecessary(
     const sync_pb::ThemeSpecifics& theme_specifics, Profile* profile);
 
 // Like SetCurrentThemeFromThemeSpecifics() except that in the case where
 // |theme_specifics| uses the default theme and |profile| does not, the local
 // data "wins" against the server's and |theme_specifics| is updated with the
 // custom theme. Returns true iff |theme_specifics| is updated.
 bool UpdateThemeSpecificsOrSetCurrentThemeIfNecessary(
     Profile* profile, sync_pb::ThemeSpecifics* theme_specifics);
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_GLUE_THEME_UTIL_H_