Make it possible to launch chrome --mash with ozone_platform={wayland|x11}, chromeos=0

chrome/browser/media/webrtc/window_icon_util_ozone.cc

Index: chrome/browser/media/webrtc/window_icon_util_ozone.cc
diff --git a/chrome/browser/media/webrtc/window_icon_util_ozone.cc b/chrome/browser/media/webrtc/window_icon_util_ozone.cc
new file mode 100644
index 0000000000000000000000000000000000000000..f519648c48990fba693d2d58567905b25e9ce233
--- /dev/null
+++ b/chrome/browser/media/webrtc/window_icon_util_ozone.cc
@@ -0,0 +1,17 @@
+// Copyright 2016 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 "chrome/browser/media/webrtc/window_icon_util.h"
+
+#include "content/public/browser/desktop_media_id.h"
+#include "ui/aura/client/aura_constants.h"
+
+gfx::ImageSkia GetWindowIcon(content::DesktopMediaID id) {
+  DCHECK_EQ(content::DesktopMediaID::TYPE_WINDOW, id.type);
+  // TODO(tonikitoo): can we make the implementation of
+  // chrome/browser/media/webrtc/window_icon_util_chromeos.cc generic
+  // enough so we can reuse it here?
+  NOTIMPLEMENTED();
+  return gfx::ImageSkia();
+}