Add HTMLMediaElement.waitingforkey event

Source/web/WebMediaPlayerClientImpl.cpp

Index: Source/web/WebMediaPlayerClientImpl.cpp
diff --git a/Source/web/WebMediaPlayerClientImpl.cpp b/Source/web/WebMediaPlayerClientImpl.cpp
index e5e8987b1e7e95ebafc74659511a9b8db31d4f87..02872502d667a342d04ddd66b3957f2c6920bee1 100644
--- a/Source/web/WebMediaPlayerClientImpl.cpp
+++ b/Source/web/WebMediaPlayerClientImpl.cpp
@@ -128,6 +128,16 @@ void WebMediaPlayerClientImpl::encrypted(const WebString& initDataType, const un
     HTMLMediaElementEncryptedMedia::encrypted(mediaElement(), initDataType, initData, initDataLength);
 }
 
+void WebMediaPlayerClientImpl::didBlockPlaybackWaitingForKey()
+{
+    HTMLMediaElementEncryptedMedia::didBlockPlaybackWaitingForKey(mediaElement());
+}
+
+void WebMediaPlayerClientImpl::didResumePlaybackBlockedForKey()
+{
+    HTMLMediaElementEncryptedMedia::didResumePlaybackBlockedForKey(mediaElement());
+}
+
 void WebMediaPlayerClientImpl::setWebLayer(WebLayer* layer)
 {
     m_client->mediaPlayerSetWebLayer(layer);