WIP - WebMediaPlayer switch media renderer.

third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp

Index: third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp
diff --git a/third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp b/third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp
index a0684f80b7e06f7374b48af6c614da0578e5e1e5..7081e67fb43fb32650c05a74a2459fbc78e225d7 100644
--- a/third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp
+++ b/third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp
@@ -788,9 +788,16 @@ std::unique_ptr<WebMediaPlayer> FrameLoaderClientImpl::createWebMediaPlayer(
 
     HTMLMediaElementEncryptedMedia& encryptedMedia = HTMLMediaElementEncryptedMedia::from(htmlMediaElement);
     WebString sinkId(HTMLMediaElementAudioOutputDevice::sinkId(htmlMediaElement));
-    return wrapUnique(webFrame->client()->createMediaPlayer(source,
+    std::unique_ptr<WebMediaPlayer> mediaPlayer = wrapUnique(webFrame->client()->createMediaPlayer(source,
         client, &encryptedMedia,
         encryptedMedia.contentDecryptionModule(), sinkId));
+
+    // Notify WMPI if the video is loaded in fullscreen or its ancestor is full screen element.
+    Element* fullscreenElement = Fullscreen::currentFullScreenElementFrom(htmlMediaElement.document());
+    if (fullscreenElement->contains(&htmlMediaElement))
+        mediaPlayer->ancestorEnteredFullscreen();
+
+    return mediaPlayer;
 }
 
 std::unique_ptr<WebMediaSession> FrameLoaderClientImpl::createWebMediaSession()