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 7b9e47b1e600ce256c5607af738a8516cea9c1cb..7f3dd29b7faf380a38dc48403a1a27036a7563f3 100644
--- a/third_party/WebKit/Source/core/paint/MediaControlsPainter.cpp
+++ b/third_party/WebKit/Source/core/paint/MediaControlsPainter.cpp
@@ -56,6 +56,10 @@ static const int mediaSliderThumbPaintHeight = 12;
 static const int mediaOverlayPlayButtonWidth = 48;
 static const int mediaOverlayPlayButtonHeight = 48;
 
+// Overlay media remoting cast button size.
+static const int mediaRemotingCastIconWidth = 88;
+static const int mediaRemotingCastIconHeight = 72;
+
 // Alpha for disabled elements.
 static const float kDisabledAlpha = 0.4;
 
@@ -203,6 +207,26 @@ bool MediaControlsPainter::paintMediaOverlayPlayButton(
   return paintMediaButton(paintInfo.context, buttonRect, mediaOverlayPlay);
 }
 
+bool MediaControlsPainter::paintMediaRemotingCastIcon(
+    const LayoutObject& object,
+    const PaintInfo& paintInfo,
+    const IntRect& rect) {
+  const HTMLMediaElement* mediaElement = toParentMediaElement(object);
+  if (!mediaElement)
+    return false;
+
+  static Image* mediaremotingCast = platformResource("mediaremotingCast");
+
+  const int buttonWidth = std::min(rect.width(), mediaRemotingCastIconWidth);
+  const int buttonHeight = std::min(rect.height(), mediaRemotingCastIconHeight);
+
+  return paintMediaButton(paintInfo.context,
+                          IntRect(rect.x() + (rect.width() - buttonWidth) / 2,
+                                  rect.y() + (rect.height() - buttonHeight) / 2,
+                                  buttonWidth, buttonHeight),
+                          mediaremotingCast);
+}
+
 static void paintRoundedSliderBackground(const IntRect& rect,
                                          const ComputedStyle& style,
                                          GraphicsContext& context,