Remove obsolete scale related APIs for cursor

ash/wm/ash_native_cursor_manager.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 ASH_WM_ASH_NATIVE_CURSOR_MANAGER_H_
 #define ASH_WM_ASH_NATIVE_CURSOR_MANAGER_H_
 
 #include "ash/ash_export.h"
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
@@ skipping 34 matching lines @@
   // Overridden from ::wm::NativeCursorManager:
   virtual void SetDisplay(
       const gfx::Display& display,
       ::wm::NativeCursorManagerDelegate* delegate) OVERRIDE;
   virtual void SetCursor(
       gfx::NativeCursor cursor,
       ::wm::NativeCursorManagerDelegate* delegate) OVERRIDE;
   virtual void SetVisibility(
       bool visible,
       ::wm::NativeCursorManagerDelegate* delegate) OVERRIDE;
-  virtual void SetScale(
-      float scale,
-      ::wm::NativeCursorManagerDelegate* delegate) OVERRIDE;
   virtual void SetCursorSet(
       ui::CursorSetType cursor_set,
       ::wm::NativeCursorManagerDelegate* delegate) OVERRIDE;
   virtual void SetMouseEventsEnabled(
       bool enabled,
       ::wm::NativeCursorManagerDelegate* delegate) OVERRIDE;
 
   // The cursor location where the cursor was disabled.
   gfx::Point disabled_cursor_location_;
 
   bool native_cursor_enabled_;
 
   scoped_ptr<ImageCursors> image_cursors_;
 
   DISALLOW_COPY_AND_ASSIGN(AshNativeCursorManager);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_ASH_NATIVE_CURSOR_MANAGER_H_