Support text track selection in video controls

Source/core/html/shadow/MediaControlElementTypes.cpp

Index: Source/core/html/shadow/MediaControlElementTypes.cpp
diff --git a/Source/core/html/shadow/MediaControlElementTypes.cpp b/Source/core/html/shadow/MediaControlElementTypes.cpp
index 70d738556f731e1bee57b58bf0f4ca9d2a611bc1..6240568263a7e27cc1777d96b21bb9afb2866fd0 100644
--- a/Source/core/html/shadow/MediaControlElementTypes.cpp
+++ b/Source/core/html/shadow/MediaControlElementTypes.cpp
@@ -89,6 +89,12 @@ void MediaControlElement::show()
     m_element->removeInlineStyleProperty(CSSPropertyDisplay);
 }
 
+bool MediaControlElement::isVisible()
+{
+    const StylePropertySet* propertySet = m_element->inlineStyle();
+    return (!propertySet || !propertySet->getPropertyCSSValue(CSSPropertyDisplay));

[fs, 2015/04/14 12:34:56]

Redundant (). Use hasProperty()?

[srivats, 2015/04/16 23:37:19]

Done.

+}
+
 void MediaControlElement::setDisplayType(MediaControlElementType displayType)
 {
     if (displayType == m_displayType)