Add support for a virtual display on ChromeOS

content/public/browser/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/browser/desktop_media_id.h"
 
 #include <vector>
 
 #include "base/memory/singleton.h"
 #include "base/strings/string_split.h"
@@ skipping 63 matching lines @@
 
 #endif  // defined(USE_AURA)
 
 }  // namespace
 
 namespace content {
 
 const char kScreenPrefix[] = "screen";
 const char kWindowPrefix[] = "window";
 const char kAuraWindowPrefix[] = "aura_window";
+const char kAuraVirtualScreenPrefix[] = "aura_virtual_screen";
 
 #if defined(USE_AURA)
 
 // static
 DesktopMediaID DesktopMediaID::RegisterAuraWindow(aura::Window* window) {
   return DesktopMediaID(
       TYPE_AURA_WINDOW,
       AuraWindowRegistry::GetInstance()->RegisterWindow(window));
 }
 
@@ skipping 13 matching lines @@
   if (parts.size() != 2)
     return DesktopMediaID(TYPE_NONE, 0);
 
   Type type = TYPE_NONE;
   if (parts[0] == kScreenPrefix) {
     type = TYPE_SCREEN;
   } else if (parts[0] == kWindowPrefix) {
     type = TYPE_WINDOW;
   } else if (parts[0] == kAuraWindowPrefix) {
     type = TYPE_AURA_WINDOW;
+  } else if (parts[0] == kAuraVirtualScreenPrefix) {
+    type = TYPE_AURA_VIRTUAL_SCREEN;
   } else {
     return DesktopMediaID(TYPE_NONE, 0);
   }
 
   int64 id;
   if (!base::StringToInt64(parts[1], &id))
     return DesktopMediaID(TYPE_NONE, 0);
 
   return DesktopMediaID(type, id);
 }
 
 std::string DesktopMediaID::ToString() {
   std::string prefix;
   switch (type) {
     case TYPE_NONE:
       NOTREACHED();
       return std::string();
     case TYPE_SCREEN:
       prefix = kScreenPrefix;
       break;
     case TYPE_WINDOW:
       prefix = kWindowPrefix;
       break;
     case TYPE_AURA_WINDOW:
       prefix = kAuraWindowPrefix;
       break;
+    case TYPE_AURA_VIRTUAL_SCREEN:
+      prefix = kAuraVirtualScreenPrefix;
+      break;
   }
   DCHECK(!prefix.empty());
 
   prefix.append(":");
   prefix.append(base::Int64ToString(id));
 
   return prefix;
 }
 
 }  // namespace content