[Ozone] Constrain the cursor when overscan insets are set

ui/platform_window/x11/x11_window.h

 // Copyright 2014 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_PLATFORM_WINDOW_X11_X11_WINDOW_H_
 #define UI_PLATFORM_WINDOW_X11_X11_WINDOW_H_
 
 #include "ui/events/platform/platform_event_dispatcher.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/x/x11_atom_cache.h"
@@ skipping 24 matching lines @@
   void SetBounds(const gfx::Rect& bounds) override;
   gfx::Rect GetBounds() override;
   void SetCapture() override;
   void ReleaseCapture() override;
   void ToggleFullscreen() override;
   void Maximize() override;
   void Minimize() override;
   void Restore() override;
   void SetCursor(PlatformCursor cursor) override;
   void MoveCursorTo(const gfx::Point& location) override;
+  void ConfineCursorToBounds(const gfx::Rect& bounds) override;
 
   // PlatformEventDispatcher:
   bool CanDispatchEvent(const PlatformEvent& event) override;
   uint32_t DispatchEvent(const PlatformEvent& event) override;
 
   PlatformWindowDelegate* delegate_;
 
   XDisplay* xdisplay_;
   XID xwindow_;
   XID xroot_window_;
   X11AtomCache atom_cache_;
 
   // Setting the bounds is an asynchronous operation in X11. |requested_bounds_|
   // is the bounds requested using XConfigureWindow, and |confirmed_bounds_| is
   // the bounds the X11 server has set on the window.
   gfx::Rect requested_bounds_;
   gfx::Rect confirmed_bounds_;
 
   bool window_mapped_;
 
   DISALLOW_COPY_AND_ASSIGN(X11Window);
 };
 
 }  // namespace ui
 
 #endif  // UI_PLATFORM_WINDOW_X11_X11_WINDOW_H_