Implement large cursors in Mushrome.

ash/display/cursor_window_controller.h

Index: ash/display/cursor_window_controller.h
diff --git a/ash/display/cursor_window_controller.h b/ash/display/cursor_window_controller.h
index b81638037ee4e85c56a3c41cdd5f384308b224a2..762bd407c6f7cbbc1e613e9986d3f567275db222 100644
--- a/ash/display/cursor_window_controller.h
+++ b/ash/display/cursor_window_controller.h
@@ -50,7 +50,7 @@ class ASH_EXPORT CursorWindowController {
   // Sets cursor location, shape, set and visibility.
   void UpdateLocation();
   void SetCursor(gfx::NativeCursor cursor);
-  void SetCursorSet(ui::CursorSetType);
+  void SetCursorSize(ui::CursorSize cursor_size);
   void SetVisibility(bool visible);
 
  private:
@@ -84,7 +84,7 @@ class ASH_EXPORT CursorWindowController {
   // The last requested cursor visibility.
   bool visible_;
 
-  ui::CursorSetType cursor_set_;
+  ui::CursorSize cursor_size_;
   gfx::Point hot_point_;
 
   int large_cursor_size_in_dip_;