Converts remaining windowmanager property based functions to SetProperty

components/mus/ws/forwarding_window_manager.h

Index: components/mus/ws/forwarding_window_manager.h
diff --git a/components/mus/ws/forwarding_window_manager.h b/components/mus/ws/forwarding_window_manager.h
index 23a2cae5041f5cdec922fa0b13bb4eb80d638d3b..9268b1a4e2a02680ba213fcdee0b18cd0c0888c9 100644
--- a/components/mus/ws/forwarding_window_manager.h
+++ b/components/mus/ws/forwarding_window_manager.h
@@ -28,11 +28,6 @@ class ForwardingWindowManager : public mojom::WindowManager {
   void OpenWindow(
       mus::mojom::WindowTreeClientPtr client,
       mojo::Map<mojo::String, mojo::Array<uint8_t>> properties) override;
-  void SetPreferredSize(uint32_t window_id,
-                        mojo::SizePtr size,
-                        const SetPreferredSizeCallback& callback) override;
-  void SetResizeBehavior(uint32_t window_id,
-                         mus::mojom::ResizeBehavior resize_behavior) override;
   void GetConfig(const GetConfigCallback& callback) override;
 
   ConnectionManager* connection_manager_;