Implement large cursors in Mushrome.

ui/aura/mus/window_manager_delegate.h

 // Copyright 2015 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 UI_AURA_MUS_WINDOW_MANAGER_DELEGATE_H_
 #define UI_AURA_MUS_WINDOW_MANAGER_DELEGATE_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 52 matching lines @@
   // Queues changes to the cursor instead of applying them instantly. Queued
   // changes will be executed on UnlockCursor().
   virtual void LockCursor() = 0;
 
   // Executes queued changes.
   virtual void UnlockCursor() = 0;
 
   // Globally shows or hides the cursor.
   virtual void SetCursorVisible(bool visible) = 0;
 
+  // Globally sets whether we use normal or large cursors.
+  virtual void SetCursorSize(ui::CursorSize cursor_size) = 0;
+
   // Sets a cursor which is used instead of the per window cursors. Pass a
   // nullopt in |cursor| to clear the override.
   virtual void SetGlobalOverrideCursor(
       base::Optional<ui::CursorData> cursor) = 0;
 
   // Requests the client embedded in |window| to close the window. Only
   // applicable to top-level windows. If a client is not embedded in |window|,
   // this does nothing.
   virtual void RequestClose(Window* window) = 0;
 
@@ skipping 134 matching lines @@
   // window.
   virtual void OnWmDeactivateWindow(Window* window) = 0;
 
  protected:
   virtual ~WindowManagerDelegate() {}
 };
 
 }  // namespace ui
 
 #endif  // UI_AURA_MUS_WINDOW_MANAGER_DELEGATE_H_