Intersection Observer support for OOPIF

content/renderer/render_widget.h

 // Copyright (c) 2012 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 CONTENT_RENDERER_RENDER_WIDGET_H_
 #define CONTENT_RENDERER_RENDER_WIDGET_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 492 matching lines @@
   // initialized.
   virtual void OnDeviceScaleFactorChanged();
 
   void OnRepaint(gfx::Size size_to_paint);
   void OnSyntheticGestureCompleted();
   void OnSetTextDirection(blink::WebTextDirection direction);
   void OnGetFPS();
   void OnUpdateScreenRects(const gfx::Rect& view_screen_rect,
                            const gfx::Rect& window_screen_rect);
   void OnUpdateWindowScreenRect(const gfx::Rect& window_screen_rect);
+  void OnSetViewportIntersection(const gfx::Rect& viewport_intersection);
   void OnHandleCompositorProto(const std::vector<uint8_t>& proto);
   // Real data that is dragged is not included at DragEnter time.
   void OnDragTargetDragEnter(
       const std::vector<DropData::Metadata>& drop_meta_data,
       const gfx::Point& client_pt,
       const gfx::Point& screen_pt,
       blink::WebDragOperationsMask operations_allowed,
       int key_modifiers);
   void OnDragTargetDragOver(const gfx::Point& client_pt,
                             const gfx::Point& screen_pt,
@@ skipping 335 matching lines @@
   // being handled. If the current event results in starting a drag/drop
   // session, this info is sent to the browser along with other drag/drop info.
   DragEventSourceInfo possible_drag_event_info_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_