Move scoped_nsobject from base/memory to base/mac.

base/mac/scoped_cftyperef.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 BASE_MAC_SCOPED_CFTYPEREF_H_
 #define BASE_MAC_SCOPED_CFTYPEREF_H_
 
 #include <CoreFoundation/CoreFoundation.h>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_policy.h"
 
 namespace base {
-namespace mac {
 
 // ScopedCFTypeRef<> is patterned after scoped_ptr<>, but maintains ownership
 // of a CoreFoundation object: any object that can be represented as a
 // CFTypeRef.  Style deviations here are solely for compatibility with
 // scoped_ptr<>'s interface, with which everyone is already familiar.
 //
 // By default, ScopedCFTypeRef<> takes ownership of an object (in the
 // constructor or in reset()) by taking over the caller's existing ownership
 // claim.  The caller must own the object it gives to ScopedCFTypeRef<>, and
 // relinquishes an ownership claim to that object.  ScopedCFTypeRef<> does not
@@ skipping 69 matching lines @@
   CFT release() WARN_UNUSED_RESULT {
     CFT temp = object_;
     object_ = NULL;
     return temp;
   }
 
  private:
   CFT object_;
 };
 
+// TODO(thakis): Remove this once all clients use base::ScopedCFTypeRef
+// directly.
+namespace mac {
+using base::ScopedCFTypeRef;
 }  // namespace mac
+
 }  // namespace base
 
 #endif  // BASE_MAC_SCOPED_CFTYPEREF_H_