chromeos: Move files in //ash/common to //ash, part 2

ash/palette_delegate.h

 // Copyright 2016 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 ASH_COMMON_PALETTE_DELEGATE_H_
-#define ASH_COMMON_PALETTE_DELEGATE_H_
+#ifndef ASH_PALETTE_DELEGATE_H_
+#define ASH_PALETTE_DELEGATE_H_
 
 #include "ash/ash_export.h"
 #include "base/callback.h"
 #include "base/callback_list.h"
 #include "base/macros.h"
 #include "ui/events/devices/stylus_state.h"
 
 namespace ash {
 
 // This delegate allows the UI code in ash, e.g. |PaletteTray|, to perform
@@ skipping 36 matching lines @@
 
   // Cancels any active partial screenshot session.
   virtual void CancelPartialScreenshot() = 0;
 
  private:
   DISALLOW_ASSIGN(PaletteDelegate);
 };
 
 }  // namespace ash
 
-#endif  // ASH_COMMON_PALETTE_DELEGATE_H_
+#endif  // ASH_PALETTE_DELEGATE_H_