Move small c/b/extensions classes into extensions namespace no.2

chrome/browser/extensions/data_deleter.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_BROWSER_EXTENSIONS_EXTENSION_DATA_DELETER_H_
-#define CHROME_BROWSER_EXTENSIONS_EXTENSION_DATA_DELETER_H_
+#ifndef CHROME_BROWSER_EXTENSIONS_DATA_DELETER_H_
+#define CHROME_BROWSER_EXTENSIONS_DATA_DELETER_H_
 
 #include "base/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/sequenced_task_runner_helpers.h"
 #include "base/string16.h"
 #include "content/public/browser/browser_thread.h"
 #include "googleurl/src/gurl.h"
 
 namespace content {
 class DOMStorageContext;
 class IndexedDBContext;
 class ResourceContext;
 }
 
 namespace fileapi {
 class FileSystemContext;
 }
 
 namespace net {
 class URLRequestContextGetter;
 }
 
 namespace webkit_database {
 class DatabaseTracker;
 }
 
 class Profile;
 
+namespace extensions {
+
 // A helper class that takes care of removing local storage, databases and
 // cookies for a given extension. This is used by
 // ExtensionService::ClearExtensionData() upon uninstalling an extension.
-class ExtensionDataDeleter
-  : public base::RefCountedThreadSafe<
-        ExtensionDataDeleter, content::BrowserThread::DeleteOnUIThread> {
+class DataDeleter : public base::RefCountedThreadSafe<
+    DataDeleter, content::BrowserThread::DeleteOnUIThread> {
  public:
   // Starts removing data. The extension should not be running when this is
   // called. Cookies are deleted on the current thread, local storage and
   // databases/settings are deleted asynchronously on the webkit and file
   // threads, respectively. This function must be called from the UI thread.
   static void StartDeleting(
       Profile* profile,
       const std::string& extension_id,
       const GURL& storage_origin,
       bool is_storage_isolated);
 
  private:
   friend struct content::BrowserThread::DeleteOnThread<
       content::BrowserThread::UI>;
-  friend class base::DeleteHelper<ExtensionDataDeleter>;
+  friend class base::DeleteHelper<DataDeleter>;
 
-  ExtensionDataDeleter(
-      Profile* profile,
-      const std::string& extension_id,
-      const GURL& storage_origin,
-      bool is_storage_isolated);
-  ~ExtensionDataDeleter();
+  DataDeleter(Profile* profile,
+              const std::string& extension_id,
+              const GURL& storage_origin,
+              bool is_storage_isolated);
+  ~DataDeleter();
 
   // Deletes the cookies for the extension. May only be called on the io
   // thread.
   void DeleteCookiesOnIOThread();
 
   // Deletes the database for the extension. May only be called on the file
   // thread.
   void DeleteDatabaseOnFileThread();
 
   // Deletes indexed db files for the extension. May only be called on the
@@ skipping 23 matching lines @@
 
   // The security origin identifier for which we're deleting stuff.
   string16 origin_id_;
 
   scoped_refptr<fileapi::FileSystemContext> file_system_context_;
 
   // If non-empty, the extension we're deleting is an isolated app, and this
   // is its directory which we should delete.
   FilePath isolated_app_path_;
 
-  DISALLOW_COPY_AND_ASSIGN(ExtensionDataDeleter);
+  DISALLOW_COPY_AND_ASSIGN(DataDeleter);
 };
 
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_DATA_DELETER_H_
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_DATA_DELETER_H_