Intersection Observer support for OOPIF

third_party/WebKit/public/web/WebRemoteFrameClient.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 WebRemoteFrameClient_h
 #define WebRemoteFrameClient_h
 
 #include "public/platform/WebFocusType.h"
 #include "public/platform/WebSecurityOrigin.h"
 #include "public/web/WebDOMMessageEvent.h"
 #include "public/web/WebFrame.h"
 
 namespace blink {
 class WebInputEvent;
 enum class WebClientRedirectPolicy;
 enum class WebFrameLoadType;
+struct WebPoint;
 struct WebRect;
 
 class WebRemoteFrameClient {
  public:
   // Specifies the reason for the detachment.
   enum class DetachType { Remove, Swap };
 
   // Notify the embedder that it should remove this frame from the frame tree
   // and release any resources associated with it.
   virtual void frameDetached(DetachType) {}
 
   // Notifies the embedder that a postMessage was issued to a remote frame.
   virtual void forwardPostMessage(WebLocalFrame* sourceFrame,
                                   WebRemoteFrame* targetFrame,
                                   WebSecurityOrigin targetOrigin,
                                   WebDOMMessageEvent) {}
 
   // A remote frame was asked to start a navigation.
   virtual void navigate(const WebURLRequest& request,
                         bool shouldReplaceCurrentEntry) {}
   virtual void reload(WebFrameLoadType, WebClientRedirectPolicy) {}
 
   // FIXME: Remove this method once we have input routing in the browser
   // process. See http://crbug.com/339659.
   virtual void forwardInputEvent(const WebInputEvent*) {}
 
   virtual void frameRectsChanged(const WebRect&) {}
 
+  virtual void updateRemoteViewportIntersection(
+      const WebRect& viewportIntersection,
+      const WebPoint& rootOffset) {}
+
   virtual void visibilityChanged(bool visible) {}
 
   // This frame updated its opener to another frame.
   virtual void didChangeOpener(WebFrame* opener) {}
 
   // Continue sequential focus navigation in this frame.  This is called when
   // the |source| frame is searching for the next focusable element (e.g., in
   // response to <tab>) and encounters a remote frame.
   virtual void advanceFocus(WebFocusType type, WebLocalFrame* source) {}
 
   // This frame was focused by another frame.
   virtual void frameFocused() {}
 };
 
 }  // namespace blink
 
 #endif  // WebRemoteFrameClient_h