Propagate identifier from AXNodeData to FlutterPlatformNodeDelegateWindows::GetAuthorUniqueId

Author: nicerloop

shell/platform/windows/flutter_platform_node_delegate_windows.cc

@@ -7,6 +7,7 @@
 #include "flutter/shell/platform/windows/flutter_platform_node_delegate_windows.h"
 
 #include "flutter/fml/logging.h"
+#include "flutter/fml/platform/win/wstring_conversion.h"
 #include "flutter/shell/platform/windows/accessibility_bridge_windows.h"
 #include "flutter/shell/platform/windows/flutter_windows_view.h"
 #include "flutter/third_party/accessibility/ax/ax_clipping_behavior.h"
@@ -78,6 +79,13 @@ gfx::NativeViewAccessible FlutterPlatformNodeDelegateWindows::HitTestSync(
   return ax_platform_node_->GetNativeViewAccessible();
 }
 
+// |ui::AXPlatformNodeDelegate|
+std::u16string FlutterPlatformNodeDelegateWindows::GetAuthorUniqueId() const {
+  return fml::WideStringToUtf16(
+      fml::Utf8ToWideString(GetData().GetStringAttribute(
+          ax::mojom::StringAttribute::kAuthorUniqueId)));
+}
+
 // |FlutterPlatformNodeDelegate|
 gfx::Rect FlutterPlatformNodeDelegateWindows::GetBoundsRect(
     const ui::AXCoordinateSystem coordinate_system,

shell/platform/windows/flutter_platform_node_delegate_windows.h

@@ -34,6 +34,9 @@ class FlutterPlatformNodeDelegateWindows : public FlutterPlatformNodeDelegate {
       int screen_physical_pixel_x,
       int screen_physical_pixel_y) const override;
 
+  // |ui::AXPlatformNodeDelegateBase|
+  std::u16string GetAuthorUniqueId() const override;
+
   // |FlutterPlatformNodeDelegate|
   gfx::Rect GetBoundsRect(
       const ui::AXCoordinateSystem coordinate_system,