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

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

 /*
  * Copyright (C) 2009 Apple Inc.
  * Copyright (C) 2009 Google 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.
@@ skipping 199 matching lines @@
                                          const ComputedStyle& style,
                                          GraphicsContext& context,
                                          Color slider_background_color) {
   float border_radius = rect.Height() / 2;
   FloatSize radii(border_radius, border_radius);
 
   context.FillRoundedRect(FloatRoundedRect(rect, radii, radii, radii, radii),
                           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,
                                       int start_position,
                                       int end_position,
                                       Color start_color,
                                       Color end_color) {
   // Calculate border radius; need to avoid being smaller than half the slider
   // height because of https://bugs.webkit.org/show_bug.cgi?id=30143.
   float border_radius = rect.Height() / 2.0f;
@@ skipping 380 matching lines @@
 void MediaControlsPainter::AdjustMediaSliderThumbSize(ComputedStyle& style) {
   const float zoom_level = style.EffectiveZoom();
 
   style.SetWidth(Length(
       static_cast<int>(kMediaSliderThumbTouchWidth * zoom_level), kFixed));
   style.SetHeight(Length(
       static_cast<int>(kMediaSliderThumbTouchHeight * zoom_level), kFixed));
 }
 
 }  // namespace blink