Extend content::DesktopMediaID to allow Aura windows as capture sources.

content/public/common/desktop_media_id.cc

-// Copyright 2013 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 "content/public/common/desktop_media_id.h"
-
-namespace content {
-
-// static
-DesktopMediaID DesktopMediaID::Parse(const std::string& str) {
-  if (str == "screen")
-    return DesktopMediaID(TYPE_SCREEN, 0);
-
-  std::string window_prefix("window:");
-  if (StartsWithASCII(str, window_prefix, true)) {
-    int64 id;
-    if (!base::StringToInt64(str.substr(window_prefix.size()), &id))
-      return DesktopMediaID(TYPE_NONE, 0);
-    return DesktopMediaID(TYPE_WINDOW, id);
-  }
-
-  return DesktopMediaID(TYPE_NONE, 0);
-}
-
-std::string DesktopMediaID::ToString() {
-  switch (type) {
-    case TYPE_NONE:
-      NOTREACHED();
-      return std::string();
-
-    case TYPE_SCREEN:
-      return "screen";
-
-    case TYPE_WINDOW:
-      return "window:" + base::Int64ToString(id);
-  }
-  NOTREACHED();
-  return std::string();
-}
-
-}  // namespace content