Move scoped_nsobject from base/memory to base/mac.

base/mac/scoped_nsobject.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_MEMORY_SCOPED_NSOBJECT_H_
-#define BASE_MEMORY_SCOPED_NSOBJECT_H_
+#ifndef BASE_MAC_SCOPED_NSOBJECT_H_
+#define BASE_MAC_SCOPED_NSOBJECT_H_
 
 #import <Foundation/Foundation.h>
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 
+namespace base {
+
 // scoped_nsobject<> is patterned after scoped_ptr<>, but maintains ownership
 // of an NSObject subclass object.  Style deviations here are solely for
 // compatibility with scoped_ptr<>'s interface, with which everyone is already
 // familiar.
 //
 // scoped_nsobject<> 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 scoped_nsobject<>, and relinquishes an
 // ownership claim to that object.  scoped_nsobject<> does not call -retain,
 // callers have to call this manually if appropriate.
@@ skipping 119 matching lines @@
 
 // Do not use scoped_nsobject for NSAutoreleasePools, use
 // ScopedNSAutoreleasePool instead. This is a compile time check. See details
 // at top of header.
 template<>
 class scoped_nsobject<NSAutoreleasePool> {
  private:
   explicit scoped_nsobject(NSAutoreleasePool* object = nil);
   DISALLOW_COPY_AND_ASSIGN(scoped_nsobject);
 };
-#endif  // BASE_MEMORY_SCOPED_NSOBJECT_H_
+
+}  // namespace base
+
+#endif  // BASE_MAC_SCOPED_NSOBJECT_H_