Fix UWP build for UpdateCursorRect rename (#24697)

Author: clarkezone

shell/platform/windows/flutter_window_winuwp.cc

@@ -68,7 +68,7 @@ void FlutterWindowWinUWP::UpdateFlutterCursor(const std::string& cursor_name) {
   // https://github.com/flutter/flutter/issues/70199
 }
 
-void FlutterWindowWinUWP::UpdateCursorRect(const Rect& rect) {
+void FlutterWindowWinUWP::OnCursorRectUpdated(const Rect& rect) {
   // TODO(cbracken): Implement IMM candidate window positioning.
 }
 

shell/platform/windows/flutter_window_winuwp.h

@@ -50,7 +50,7 @@ class FlutterWindowWinUWP : public WindowBindingHandler {
   void UpdateFlutterCursor(const std::string& cursor_name) override;
 
   // |WindowBindingHandler|
-  void UpdateCursorRect(const Rect& rect) override;
+  void OnCursorRectUpdated(const Rect& rect) override;
 
   // |WindowBindingHandler|
   void OnWindowResized() override;