[Ozone-GBM] Adding NativeWindowDelegate to IPC window changes to the GPU

ui/ozone/platform/dri/screen_manager.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_SCREEN_MANAGER_H_
 #define UI_OZONE_PLATFORM_DRI_SCREEN_MANAGER_H_
 
 #include <map>
 
 #include "base/macros.h"
@@ skipping 37 matching lines @@
   bool DisableDisplayController(uint32_t crtc);
 
   // Returns a reference to the display controller associated with |widget|.
   // This returns a weak reference since the display controller may be destroyed
   // at any point in time, but the changes are propagated to the compositor much
   // later (Compositor owns SurfaceOzone*, which is responsible for updating the
   // display surface).
   base::WeakPtr<HardwareDisplayController> GetDisplayController(
       gfx::AcceleratedWidget widget);
 
+  // Returns a reference to the display controller configured to display within
+  // |bounds|.
+  // This returns a weak reference since the display controller may be destroyed
+  // at any point in time, but the changes are propagated to the compositor much
+  // later (Compositor owns SurfaceOzone*, which is responsible for updating the
+  // display surface).
+  base::WeakPtr<HardwareDisplayController> GetDisplayController(
+      const gfx::Rect& bounds);
+
  private:
   typedef std::map<gfx::AcceleratedWidget, HardwareDisplayController*>
       HardwareDisplayControllerMap;
 
   // Returns an iterator into |controllers_| for the controller identified by
   // (|crtc|, |connector|).
   HardwareDisplayControllerMap::iterator FindDisplayController(
       uint32_t crtc);
 
   // Returns an iterator into |controllers_| for the controller located at
   // |origin|.
   HardwareDisplayControllerMap::iterator FindDisplayControllerByOrigin(
       const gfx::Point& origin);
 
+  // Returns an iterator into |controllers_| for the controller located within
+  // |bounds|.
+  HardwareDisplayControllerMap::iterator FindActiveDisplayControllerByLocation(
+      const gfx::Rect& bounds);
+
   // Perform modesetting in |controller| using |origin| and |mode|.
   bool ModesetDisplayController(HardwareDisplayController* controller,
                                 const gfx::Point& origin,
                                 const drmModeModeInfo& mode);
 
   // Tries to set the controller identified by (|crtc|, |connector|) to mirror
   // those in |mirror|. |original| is an iterator to the HDC where the
   // controller is currently present.
   bool HandleMirrorMode(
       HardwareDisplayControllerMap::iterator original,
@@ skipping 11 matching lines @@
   // Mapping between an accelerated widget and an active display.
   HardwareDisplayControllerMap controllers_;
   gfx::AcceleratedWidget last_added_widget_;
 
   DISALLOW_COPY_AND_ASSIGN(ScreenManager);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_DRI_SCREEN_MANAGER_H_