Implement media cast buttons

Source/core/rendering/RenderMediaControls.cpp

Index: Source/core/rendering/RenderMediaControls.cpp
diff --git a/Source/core/rendering/RenderMediaControls.cpp b/Source/core/rendering/RenderMediaControls.cpp
index 90b28aa442f4ae9c026107676cd0a4a99dec4866..ef37fcadcc1bc59345dd1c0119c42764c52891d8 100644
--- a/Source/core/rendering/RenderMediaControls.cpp
+++ b/Source/core/rendering/RenderMediaControls.cpp
@@ -27,6 +27,7 @@
 
 #include "config.h"
 #include "core/rendering/RenderMediaControls.h"
+#include "base/logging.h"
 
 #include "bindings/v8/ExceptionStatePlaceholder.h"
 #include "core/html/HTMLMediaElement.h"
@@ -335,7 +336,29 @@ static bool paintMediaToggleClosedCaptionsButton(RenderObject* object, const Pai
 
     return paintMediaButton(paintInfo.context, rect, mediaClosedCaptionButtonDisabled);
 }
+static bool paintMediaCastOffButton(RenderObject* object, const PaintInfo& paintInfo, const IntRect& rect)
+{
+  LOG(INFO) << "Painting Cast Off Button";
+  HTMLMediaElement* mediaElement = toParentMediaElement(object);
+  if (!mediaElement)
+      return false;
+
+  static Image* mediaCastOffButton = platformResource("mediaplayerCastOff");
+  return paintMediaButton(paintInfo.context, rect, mediaCastOffButton);
+
+}
 
+static bool paintMediaCastOnButton(RenderObject* object, const PaintInfo& paintInfo, const IntRect& rect)
+{
+  LOG(INFO) << "Painting Cast On Button";
+  HTMLMediaElement* mediaElement = toParentMediaElement(object);
+  if (!mediaElement)
+      return false;
+
+  static Image* mediaCastOnButton = platformResource("mediaplayerCastOn");
+  return paintMediaButton(paintInfo.context, rect, mediaCastOnButton);
+
+}
 
 bool RenderMediaControls::paintMediaControlsPart(MediaControlElementType part, RenderObject* object, const PaintInfo& paintInfo, const IntRect& rect)
 {
@@ -361,6 +384,10 @@ bool RenderMediaControls::paintMediaControlsPart(MediaControlElementType part, R
         return paintMediaFullscreenButton(object, paintInfo, rect);
     case MediaOverlayPlayButton:
         return paintMediaOverlayPlayButton(object, paintInfo, rect);
+    case MediaCastOffButton:
+        return paintMediaCastOffButton(object, paintInfo, rect);
+    case MediaCastOnButton:
+        return paintMediaCastOnButton(object, paintInfo, rect);
     case MediaVolumeSliderContainer:
     case MediaTimelineContainer:
     case MediaCurrentTimeDisplay: