Add support for a virtual display on ChromeOS

content/browser/renderer_host/media/video_capture_manager.cc

Index: content/browser/renderer_host/media/video_capture_manager.cc
diff --git a/content/browser/renderer_host/media/video_capture_manager.cc b/content/browser/renderer_host/media/video_capture_manager.cc
index 1606e48c091c1aed3690f75bded3dadfee90d8d5..5f551449e090d5e27d5afbef134dd60bdad59893 100644
--- a/content/browser/renderer_host/media/video_capture_manager.cc
+++ b/content/browser/renderer_host/media/video_capture_manager.cc
@@ -30,6 +30,9 @@
 #include "content/browser/media/capture/desktop_capture_device.h"
 #if defined(USE_AURA)
 #include "content/browser/media/capture/desktop_capture_device_aura.h"
+#if defined(OS_CHROMEOS)
+#include "content/browser/media/capture/virtual_display_capturer.h"
+#endif
 #endif
 #endif
 
@@ -414,8 +417,13 @@ VideoCaptureManager::DoStartDeviceOnDeviceThread(
       if (desktop_id.type == DesktopMediaID::TYPE_AURA_WINDOW) {
         video_capture_device.reset(
             DesktopCaptureDeviceAura::Create(desktop_id));
+#if defined(OS_CHROMEOS)
+      } else if (desktop_id.type == DesktopMediaID::TYPE_AURA_VIRTUAL_SCREEN) {
+        video_capture_device.reset(
+            VirtualDisplayCapturer::Create(device_task_runner_, desktop_id));
+#endif  // defined(OS_CHROMEOS)
       } else
-#endif
+#endif  // defined(USE_AURA)
       if (desktop_id.type != DesktopMediaID::TYPE_NONE &&
           desktop_id.type != DesktopMediaID::TYPE_AURA_WINDOW) {
         video_capture_device = DesktopCaptureDevice::Create(desktop_id);