Media Remoting: Add interstitial elements to media element shadow dom.

third_party/WebKit/Source/core/paint/MediaControlsPainter.cpp

Index: third_party/WebKit/Source/core/paint/MediaControlsPainter.cpp
diff --git a/third_party/WebKit/Source/core/paint/MediaControlsPainter.cpp b/third_party/WebKit/Source/core/paint/MediaControlsPainter.cpp
index 48ec7094c28e43d7dee482b96a00a0a776209e43..6504977b6cc0cb6baabae2cc3d46d3cadc039e6e 100644
--- a/third_party/WebKit/Source/core/paint/MediaControlsPainter.cpp
+++ b/third_party/WebKit/Source/core/paint/MediaControlsPainter.cpp
@@ -217,6 +217,18 @@ static void PaintRoundedSliderBackground(const IntRect& rect,
                           slider_background_color);
 }
 
+bool MediaControlsPainter::PaintMediaRemotingCastIcon(
+    const LayoutObject& object,
+    const PaintInfo& paintInfo,
+    const IntRect& rect) {
+  const HTMLMediaElement* media_element = ToParentMediaElement(object);
+  if (!media_element)
+    return false;
+  static Image* cast_icon = PlatformResource("mediaRemotingCastIcon");
+
+  return PaintMediaButton(paintInfo.context, rect, cast_icon);
+}
+
 static void PaintSliderRangeHighlight(const IntRect& rect,
                                       const ComputedStyle& style,
                                       GraphicsContext& context,