Implement media cast buttons

Source/core/accessibility/AXMediaControls.cpp

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 94 matching lines @@
     case MediaStatusDisplay:
         return queryString(WebLocalizedString::AXMediaStatusDisplay);
     case MediaCurrentTimeDisplay:
         return queryString(WebLocalizedString::AXMediaCurrentTimeDisplay);
     case MediaTimeRemainingDisplay:
         return queryString(WebLocalizedString::AXMediaTimeRemainingDisplay);
     case MediaShowClosedCaptionsButton:
         return queryString(WebLocalizedString::AXMediaShowClosedCaptionsButton);
     case MediaHideClosedCaptionsButton:
         return queryString(WebLocalizedString::AXMediaHideClosedCaptionsButton);
+    case MediaCastOffButton:
+        return queryString(WebLocalizedString::AxMediaCastOffButton);
+    case MediaCastOnButton:
+        return queryString(WebLocalizedString::AxMediaCastOnButton);
     default:
         return queryString(WebLocalizedString::AXMediaDefault);
     }
 }
 
 String AccessibilityMediaControl::helpText() const
 {
     switch (controlType()) {
     case MediaEnterFullscreenButton:
         return queryString(WebLocalizedString::AXMediaEnterFullscreenButtonHelp);
@@ skipping 10 matching lines @@
     case MediaStatusDisplay:
         return queryString(WebLocalizedString::AXMediaStatusDisplayHelp);
     case MediaCurrentTimeDisplay:
         return queryString(WebLocalizedString::AXMediaCurrentTimeDisplayHelp);
     case MediaTimeRemainingDisplay:
         return queryString(WebLocalizedString::AXMediaTimeRemainingDisplayHelp);
     case MediaShowClosedCaptionsButton:
         return queryString(WebLocalizedString::AXMediaShowClosedCaptionsButtonHelp);
     case MediaHideClosedCaptionsButton:
         return queryString(WebLocalizedString::AXMediaHideClosedCaptionsButtonHelp);
+    case MediaCastOffButton:
+        return queryString(WebLocalizedString::AxMediaCastOffButtonHelp);
+    case MediaCastOnButton:
+        return queryString(WebLocalizedString::AxMediaCastOnButtonHelp);
     default:
         return queryString(WebLocalizedString::AXMediaDefault);
     }
 }
 
 bool AccessibilityMediaControl::computeAccessibilityIsIgnored() const
 {
     if (!m_renderer || !m_renderer->style() || m_renderer->style()->visibility() != VISIBLE || controlType() == MediaTimelineContainer)
         return true;
 
@@ skipping 135 matching lines @@
 {
     if (!m_renderer || !m_renderer->node())
         return String();
 
     MediaControlTimeDisplayElement* element = static_cast<MediaControlTimeDisplayElement*>(m_renderer->node());
     float time = element->currentValue();
     return localizedMediaTimeDescription(fabsf(time));
 }
 
 } // namespace blink