Removes most aura dependencies from WindowResizer

ash/wm/common/wm_globals.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_WM_COMMON_WM_GLOBALS_H_
 #define ASH_WM_COMMON_WM_GLOBALS_H_
 
 #include <stdint.h>
 
 #include <vector>
@@ skipping 29 matching lines @@
   virtual WmWindow* GetRootWindowForNewWindows() = 0;
 
   // returns the list of more recently used windows excluding modals.
   virtual std::vector<WmWindow*> GetMruWindowListIgnoreModals() = 0;
 
   // Returns true if the first window shown on first run should be
   // unconditionally maximized, overriding the heuristic that normally chooses
   // the window size.
   virtual bool IsForceMaximizeOnFirstRun() = 0;
 
+  // See aura::client::CursorClient for details on these.
+  virtual void LockCursor() = 0;
+  virtual void UnlockCursor() = 0;
+
   virtual std::vector<WmWindow*> GetAllRootWindows() = 0;
 };
 
 }  // namespace wm
 }  // namespace ash
 
 #endif  // ASH_WM_COMMON_WM_GLOBALS_H_