Enable WebVTT regions for runtime testing, updated tests and minor fixes

Source/core/loader/TextTrackLoader.cpp

Index: Source/core/loader/TextTrackLoader.cpp
diff --git a/Source/core/loader/TextTrackLoader.cpp b/Source/core/loader/TextTrackLoader.cpp
index 9e00e92ec6208e096298fd173458d3ebfe5e9175..841b47979d572a48262dd8df24b531a76afa4312 100644
--- a/Source/core/loader/TextTrackLoader.cpp
+++ b/Source/core/loader/TextTrackLoader.cpp
@@ -185,12 +185,10 @@ void TextTrackLoader::newCuesParsed()
     m_cueLoadTimer.startOneShot(0);
 }
 
-#if ENABLE(WEBVTT_REGIONS)
 void TextTrackLoader::newRegionsParsed()
 {
     m_client->newRegionsAvailable(this);
 }
-#endif
 
 void TextTrackLoader::fileFailedToParse()
 {
@@ -211,13 +209,11 @@ void TextTrackLoader::getNewCues(Vector<RefPtr<TextTrackCue> >& outputCues)
         m_cueParser->getNewCues(outputCues);
 }
 
-#if ENABLE(WEBVTT_REGIONS)
 void TextTrackLoader::getNewRegions(Vector<RefPtr<TextTrackRegion> >& outputRegions)
 {
     ASSERT(m_cueParser);
     if (m_cueParser)
         m_cueParser->getNewRegions(outputRegions);
 }
-#endif
 }