Intersection Observer support for OOPIF

content/renderer/render_frame_proxy.cc

Index: content/renderer/render_frame_proxy.cc
diff --git a/content/renderer/render_frame_proxy.cc b/content/renderer/render_frame_proxy.cc
index 1a833e2fa27d79c0e61392ab96ff95da1947789c..af7ba1a581e406d18f55387f4b3d237b7e3b5d3e 100644
--- a/content/renderer/render_frame_proxy.cc
+++ b/content/renderer/render_frame_proxy.cc
@@ -29,6 +29,8 @@
 #include "content/renderer/render_widget.h"
 #include "ipc/ipc_message_macros.h"
 #include "third_party/WebKit/public/platform/URLConversion.h"
+#include "third_party/WebKit/public/platform/WebPoint.h"
+#include "third_party/WebKit/public/platform/WebRect.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/web/WebLocalFrame.h"
 #include "third_party/WebKit/public/web/WebUserGestureIndicator.h"
@@ -478,6 +480,14 @@ void RenderFrameProxy::frameRectsChanged(const blink::WebRect& frame_rect) {
   Send(new FrameHostMsg_FrameRectChanged(routing_id_, rect));
 }
 
+void RenderFrameProxy::updateRemoteViewportIntersection(
+    const blink::WebRect& viewportIntersection,
+    const blink::WebPoint& rootOffset) {
+  // TODO(kenrb): Do we need to account for DSF here, as above?
+  Send(new FrameHostMsg_UpdateViewportIntersection(
+      routing_id_, gfx::Rect(viewportIntersection), gfx::Point(rootOffset)));
+}
+
 void RenderFrameProxy::visibilityChanged(bool visible) {
   Send(new FrameHostMsg_VisibilityChanged(routing_id_, visible));
 }