[Ozone] Constrain the cursor when overscan insets are set

ui/platform_window/win/win_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_WIN_WIN_WINDOW_H_
 #define UI_PLATFORM_WINDOW_WIN_WIN_WINDOW_H_
 
 #include "base/compiler_specific.h"
 #include "ui/gfx/win/window_impl.h"
 #include "ui/platform_window/platform_window.h"
@@ skipping 17 matching lines @@
   virtual void SetBounds(const gfx::Rect& bounds) override;
   virtual gfx::Rect GetBounds() override;
   virtual void SetCapture() override;
   virtual void ReleaseCapture() override;
   virtual void ToggleFullscreen() override;
   virtual void Maximize() override;
   virtual void Minimize() override;
   virtual void Restore() override;
   virtual void SetCursor(PlatformCursor cursor) override;
   virtual void MoveCursorTo(const gfx::Point& location) override;
+  virtual void ConfineCursorToBounds(const gfx::Rect& bounds) override;
 
   CR_BEGIN_MSG_MAP_EX(WinWindow)
     CR_MESSAGE_RANGE_HANDLER_EX(WM_MOUSEFIRST, WM_MOUSELAST, OnMouseRange)
     CR_MESSAGE_RANGE_HANDLER_EX(WM_NCMOUSEMOVE,
                                 WM_NCXBUTTONDBLCLK,
                                 OnMouseRange)
     CR_MESSAGE_HANDLER_EX(WM_CAPTURECHANGED, OnCaptureChanged)
 
     CR_MESSAGE_HANDLER_EX(WM_KEYDOWN, OnKeyEvent)
     CR_MESSAGE_HANDLER_EX(WM_KEYUP, OnKeyEvent)
@@ skipping 31 matching lines @@
 // Set true to let WindowTreeHostWin use a popup window
 // with no frame/title so that the window size and test's
 // expectations matches.
 WIN_WINDOW_EXPORT void SetUsePopupAsRootWindowForTest(bool use);
 
 }  // namespace test
 
 }  // namespace ui
 
 #endif  // UI_PLATFORM_WINDOW_WIN_WIN_WINDOW_H_