Rename addTrack and removeTrack functions to addTextTrack and removeTextTrack.

Source/web/WebMediaPlayerClientImpl.cpp

Index: Source/web/WebMediaPlayerClientImpl.cpp
diff --git a/Source/web/WebMediaPlayerClientImpl.cpp b/Source/web/WebMediaPlayerClientImpl.cpp
index da73a86701218ecfdfff54ac1cb24ac51628bb24..95963ba6cef2c5b8472c9a14219eb5a76c62a0e8 100644
--- a/Source/web/WebMediaPlayerClientImpl.cpp
+++ b/Source/web/WebMediaPlayerClientImpl.cpp
@@ -176,14 +176,14 @@ void WebMediaPlayerClientImpl::setWebLayer(blink::WebLayer* layer)
     m_client->mediaPlayerSetWebLayer(layer);
 }
 
-void WebMediaPlayerClientImpl::addTextTrack(WebInbandTextTrack* textTrack)
+void WebMediaPlayerClientImpl::addTextTrack(WebInbandTextTrack* track)
 {
-    m_client->mediaPlayerDidAddTrack(textTrack);
+    m_client->mediaPlayerDidAddTextTrack(track);
 }
 
-void WebMediaPlayerClientImpl::removeTextTrack(WebInbandTextTrack* textTrack)
+void WebMediaPlayerClientImpl::removeTextTrack(WebInbandTextTrack* track)
 {
-    m_client->mediaPlayerDidRemoveTrack(textTrack);
+    m_client->mediaPlayerDidRemoveTextTrack(track);
 }
 
 void WebMediaPlayerClientImpl::mediaSourceOpened(WebMediaSource* webMediaSource)