ash: Fix include paths and header guards.

chrome/browser/ui/ash/window_positioner.h

Index: chrome/browser/ui/ash/window_positioner.h
diff --git a/chrome/browser/ui/ash/window_positioner.h b/chrome/browser/ui/ash/window_positioner.h
index 06551e0ff9ed1871ceb454c6e1fb261d6b656631..e312540f36945c8d455c8107366c0ff0b982ce50 100644
--- a/chrome/browser/ui/ash/window_positioner.h
+++ b/chrome/browser/ui/ash/window_positioner.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_UI_VIEWS_ASH_WINDOW_POSITIONER_H_
-#define CHROME_BROWSER_UI_VIEWS_ASH_WINDOW_POSITIONER_H_
+#ifndef CHROME_BROWSER_UI_ASH_WINDOW_POSITIONER_H_
+#define CHROME_BROWSER_UI_ASH_WINDOW_POSITIONER_H_
 
 #include "base/basictypes.h"
 #include "ui/gfx/rect.h"
@@ -61,4 +61,4 @@ class WindowPositioner {
   DISALLOW_COPY_AND_ASSIGN(WindowPositioner);
 };
 
-#endif  // CHROME_BROWSER_UI_VIEWS_ASH_WINDOW_POSITIONER_H_
+#endif  // CHROME_BROWSER_UI_ASH_WINDOW_POSITIONER_H_