[Ozone] Constrain the cursor when overscan insets are set

ui/ozone/platform/dri/dri_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_OZONE_PLATFORM_DRI_DRI_WINDOW_H_
 #define UI_OZONE_PLATFORM_DRI_DRI_WINDOW_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "ui/display/types/display_snapshot.h"
 #include "ui/events/platform/platform_event_dispatcher.h"
@@ skipping 21 matching lines @@
             EventFactoryEvdev* event_factory,
             DriCursor* cursor,
             DriWindowManager* window_manager,
             DisplayManager* display_manager);
   ~DriWindow() override;
 
   void Initialize();
 
   gfx::AcceleratedWidget GetAcceleratedWidget();
 
+  gfx::Rect GetCursorConfinedBounds() const;
+
   // PlatformWindow:
   void Show() override;
   void Hide() override;
   void Close() override;
   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;
 
   // ChannelObserver:
   void OnChannelEstablished() override;
   void OnChannelDestroyed() override;
 
  private:
   void SendBoundsChange();
 
   PlatformWindowDelegate* delegate_;   // Not owned.
   DriGpuPlatformSupportHost* sender_;  // Not owned.
   EventFactoryEvdev* event_factory_;   // Not owned.
   DriCursor* cursor_;                  // Not owned.
   DriWindowManager* window_manager_;   // Not owned.
   DisplayManager* display_manager_;    // Not owned.
 
   gfx::Rect bounds_;
   gfx::AcceleratedWidget widget_;
 
+  gfx::Rect cursor_confined_bounds_;
+
   DISALLOW_COPY_AND_ASSIGN(DriWindow);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_DRI_DRI_WINDOW_H_