Remove -internals-media-controls-cast-button as web exposed CSS selector.

third_party/WebKit/Source/core/css/parser/CSSSelectorParser.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/css/parser/CSSSelectorParser.h"
 
 #include "core/css/CSSSelectorList.h"
 #include "core/css/StyleSheetContents.h"
 #include "core/css/parser/CSSParserContext.h"
 #include "core/frame/Deprecation.h"
@@ skipping 832 matching lines @@
           break;
         case CSSSelector::PseudoFullScreen:
           feature = UseCounter::CSSSelectorPseudoFullScreen;
           break;
         case CSSSelector::PseudoListBox:
           if (m_context->mode() != UASheetMode)
             feature = UseCounter::CSSSelectorInternalPseudoListBox;
           break;
         case CSSSelector::PseudoWebKitCustomElement:
           if (m_context->mode() != UASheetMode) {
-            if (current->value() == "-internal-media-controls-cast-button") {
-              feature = UseCounter::CSSSelectorInternalMediaControlsCastButton;
-            } else if (current->value() ==
-                       "-internal-media-controls-overlay-cast-button") {
+            if (current->value() ==
+                "-internal-media-controls-overlay-cast-button") {
               feature =
                   UseCounter::CSSSelectorInternalMediaControlsOverlayCastButton;
             } else if (current->value() ==
                        "-internal-media-controls-text-track-list") {
               feature =
                   UseCounter::CSSSelectorInternalMediaControlsTextTrackList;
             } else if (current->value() ==
                        "-internal-media-controls-text-track-list-item") {
               feature =
                   UseCounter::CSSSelectorInternalMediaControlsTextTrackListItem;
@@ skipping 42 matching lines @@
       }
       if (current->relation() == CSSSelector::IndirectAdjacent)
         m_context->count(UseCounter::CSSSelectorIndirectAdjacent);
       if (current->selectorList())
         recordUsageAndDeprecations(*current->selectorList());
     }
   }
 }
 
 }  // namespace blink