Move c/c/e/extension_set to top-level extensions/

extensions/common/extension_set.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 CHROME_COMMON_EXTENSIONS_EXTENSION_SET_H_
-#define CHROME_COMMON_EXTENSIONS_EXTENSION_SET_H_
+#ifndef EXTENSIONS_COMMON_EXTENSION_SET_H_
+#define EXTENSIONS_COMMON_EXTENSION_SET_H_
 
 #include <iterator>
 #include <map>
 #include <string>
 
 #include "base/callback_forward.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 #include "extensions/common/extension.h"
 #include "url/gurl.h"
 
 // The one true extension container. Extensions are identified by their id.
 // Only one extension can be in the set with a given ID.
 class ExtensionSet {

[benwells, 2013/12/04 03:48:08]

This might be painful, but can you move this into the extensions namespace?

Creating the extensions component is a great opportunity to get consistency with
namespaces.

[Devlin, 2013/12/10 21:25:31]

Sorry for the delay, and thanks for catching that.  Done.

  public:
   typedef std::pair<base::FilePath, std::string> ExtensionPathAndDefaultLocale;
   typedef std::map<std::string, scoped_refptr<const extensions::Extension> >
       ExtensionMap;
   typedef base::Callback<void(const extensions::ExtensionIdSet&)>
       ModificationCallback;
 
   // Iteration over the values of the map (given that it's an ExtensionSet,
   // it should iterate like a set iterator).
   class const_iterator :
@@ skipping 104 matching lines @@
 
   // If non-null, called with the extension ids in this set after a modification
   // occurred. This is not called on Clear() which is typically used when
   // discarding the set (e.g., on shutdown) and we do not want to track that as
   // a real modification.
   ModificationCallback modification_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionSet);
 };
 
-#endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_SET_H_
+#endif  // EXTENSIONS_COMMON_EXTENSION_SET_H_