Rename text track methods to make way for audio & video tracks.

Source/web/WebMediaPlayerClientImpl.cpp

Index: Source/web/WebMediaPlayerClientImpl.cpp
diff --git a/Source/web/WebMediaPlayerClientImpl.cpp b/Source/web/WebMediaPlayerClientImpl.cpp
index 68edc54ff795e15458b96d3de43d5228490b4577..ee3ba1d6a7b78c86ea5ffc0c87859d88ef242bf3 100644
--- a/Source/web/WebMediaPlayerClientImpl.cpp
+++ b/Source/web/WebMediaPlayerClientImpl.cpp
@@ -179,12 +179,12 @@ void WebMediaPlayerClientImpl::setWebLayer(blink::WebLayer* layer)
 
 void WebMediaPlayerClientImpl::addTextTrack(WebInbandTextTrack* textTrack)
 {
-    m_client->mediaPlayerDidAddTrack(textTrack);
+    m_client->mediaPlayerDidAddTextTrack(textTrack);
 }
 
 void WebMediaPlayerClientImpl::removeTextTrack(WebInbandTextTrack* textTrack)
 {
-    m_client->mediaPlayerDidRemoveTrack(textTrack);
+    m_client->mediaPlayerDidRemoveTextTrack(textTrack);
 }
 
 void WebMediaPlayerClientImpl::mediaSourceOpened(WebMediaSource* webMediaSource)