Output DeviceName from various windows ScreenCapturer related implementations

webrtc/modules/desktop_capture/win/dxgi_output_duplicator.cc

Index: webrtc/modules/desktop_capture/win/dxgi_output_duplicator.cc
diff --git a/webrtc/modules/desktop_capture/win/dxgi_output_duplicator.cc b/webrtc/modules/desktop_capture/win/dxgi_output_duplicator.cc
index 741d5dad3fb8441b88c2ab8a91b7c33b12efe38e..21453b28ef5fd3999c9e3fffd3d4153b2a24d4d9 100644
--- a/webrtc/modules/desktop_capture/win/dxgi_output_duplicator.cc
+++ b/webrtc/modules/desktop_capture/win/dxgi_output_duplicator.cc
@@ -23,6 +23,7 @@
 #include "webrtc/modules/desktop_capture/win/dxgi_texture_staging.h"
 #include "webrtc/rtc_base/checks.h"
 #include "webrtc/rtc_base/logging.h"
+#include "webrtc/rtc_base/win32.h"
 
 namespace webrtc {
 
@@ -64,6 +65,7 @@ DxgiOutputDuplicator::DxgiOutputDuplicator(const D3dDevice& device,
                                            const DXGI_OUTPUT_DESC& desc)
     : device_(device),
       output_(output),
+      device_name_(rtc::ToUtf8(desc.DeviceName)),
       desktop_rect_(RECTToDesktopRect(desc.DesktopCoordinates)) {
   RTC_DCHECK(output_);
   RTC_DCHECK(!desktop_rect_.is_empty());