WIP - WebMediaPlayer switch media renderer.

third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp

 /*
  * Copyright (C) 2009, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 770 matching lines @@
     WebMediaPlayerClient* client)
 {
     WebLocalFrameImpl* webFrame = WebLocalFrameImpl::fromFrame(
         htmlMediaElement.document().frame());
 
     if (!webFrame || !webFrame->client())
         return nullptr;
 
     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.

[miu, 2016/09/30 08:12:11]

Blink coding style generally leans on the side of "no comments" so consider
removing this one. Same goes for comments in the other files.

If you decide to keep it, don't mention WMPI since this code doesn't know what a
WMPI is (but it does know what a WebMediaPlayer is).

[xjz, 2016/10/01 00:28:41]

Done. Removed comments.

+    Element* fullscreenElement = Fullscreen::currentFullScreenElementFrom(htmlMediaElement.document());
+    if (fullscreenElement->contains(&htmlMediaElement))
+        mediaPlayer->ancestorEnteredFullscreen();
+
+    return mediaPlayer;
 }
 
 std::unique_ptr<WebMediaSession> FrameLoaderClientImpl::createWebMediaSession()
 {
     if (!m_webFrame->client())
         return nullptr;
 
     return wrapUnique(m_webFrame->client()->createMediaSession());
 }
 
@@ skipping 193 matching lines @@
 {
     return WebLocalFrameImpl::fromFrame(m_webFrame->frame()->localFrameRoot())->devToolsAgentImpl();
 }
 
 KURL FrameLoaderClientImpl::overrideFlashEmbedWithHTML(const KURL& url)
 {
     return m_webFrame->client()->overrideFlashEmbedWithHTML(WebURL(url));
 }
 
 } // namespace blink