Remove base/scoped_handle_win.h stub and fix up all callers to use the new location and namespace.

base/scoped_handle.h

Index: base/scoped_handle.h
diff --git a/base/scoped_handle.h b/base/scoped_handle.h
index 43ee9754cec5a462438c71b5fd5e1ce1ca0dc174..90cb5d5019fb7be4958a6d573e65c6e82e6759d3 100644
--- a/base/scoped_handle.h
+++ b/base/scoped_handle.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -10,10 +10,6 @@
 
 #include "base/basictypes.h"
 
-#if defined(OS_WIN)
-#include "base/scoped_handle_win.h"
-#endif
-
 class ScopedStdioHandle {
  public:
   ScopedStdioHandle()