Add CreateWithDisableAero, to allow Windows capturer to be created without disabling Aero.

media/video/capture/screen/screen_capture_device.cc

Index: media/video/capture/screen/screen_capture_device.cc
diff --git a/media/video/capture/screen/screen_capture_device.cc b/media/video/capture/screen/screen_capture_device.cc
index c831d03cd066eac8878e9562d53d57eccc635dc7..23700d41d0b86c2a1337316c2bd43eb4f0179d5e 100644
--- a/media/video/capture/screen/screen_capture_device.cc
+++ b/media/video/capture/screen/screen_capture_device.cc
@@ -276,6 +276,11 @@ void ScreenCaptureDevice::Core::DoAllocate(int frame_rate) {
   // ChromeOS' drivers [can be patched to] support DAMAGE properly, so use it.
   if (!screen_capturer_)
     screen_capturer_ = ScreenCapturer::CreateWithXDamage(true);
+#elif defined(OS_WIN)
+  // ScreenCapturerWin disables Aero by default. We don't want it disabled for
+  // WebRTC screen capture, though.
+  if (!screen_capturer_)
+    screen_capturer_ = ScreenCapturer::CreateWithDisableAero(false);
 #else
   if (!screen_capturer_)
     screen_capturer_ = ScreenCapturer::Create();