Monitor the intersection of video and viewport.

media/blink/webmediaplayer_impl.cc

Index: media/blink/webmediaplayer_impl.cc
diff --git a/media/blink/webmediaplayer_impl.cc b/media/blink/webmediaplayer_impl.cc
index 3e1500e121bab874f209093e74cb36922672fd20..7e11e7cc8a272dce4d73289dbf2b7e43d6068b2f 100644
--- a/media/blink/webmediaplayer_impl.cc
+++ b/media/blink/webmediaplayer_impl.cc
@@ -352,6 +352,20 @@ void WebMediaPlayerImpl::exitedFullscreen() {
     observer_->OnExitedFullscreen();
 }
 
+void WebMediaPlayerImpl::videoViewportIntersectionChanged(
+    const blink::WebMediaPlayer::ViewportIntersectionInfo& info) {
+  MediaObserver::ViewportIntersectionInfo intersect_info;
+  intersect_info.ratio = info.ratio;
+  intersect_info.root_rect =

[miu, 2016/11/15 23:29:26]

I think the types have implicit conversion defined. Meaning, you can just:

  intersect_info.root_rect = info.rootRect;
  intersect_info.intersect_rect = info.intersectRect;

[xjz, 2016/11/16 01:06:45]

Done.

+      gfx::Rect(info.rootRect.x, info.rootRect.y, info.rootRect.width,
+                info.rootRect.height);
+  intersect_info.intersect_rect =
+      gfx::Rect(info.intersectRect.x, info.intersectRect.y,
+                info.intersectRect.width, info.intersectRect.height);
+  if (observer_)
+    observer_->OnVideoViewportIntersectionChanged(intersect_info);
+}
+
 void WebMediaPlayerImpl::DoLoad(LoadType load_type,
                                 const blink::WebURL& url,
                                 CORSMode cors_mode) {