Privatize StrongBinding lifetime management

services/ui/ws/window_server_test_impl.h

Index: services/ui/ws/window_server_test_impl.h
diff --git a/services/ui/ws/window_server_test_impl.h b/services/ui/ws/window_server_test_impl.h
index 6d8442d1cece325262e0e8fd7472dbdffdc75fc5..75384d8d34377f58649bea0e6b3a438923082b2b 100644
--- a/services/ui/ws/window_server_test_impl.h
+++ b/services/ui/ws/window_server_test_impl.h
@@ -5,7 +5,6 @@
 #ifndef SERVICES_UI_WS_WINDOW_SERVER_TEST_IMPL_H_
 #define SERVICES_UI_WS_WINDOW_SERVER_TEST_IMPL_H_
 
-#include "mojo/public/cpp/bindings/strong_binding.h"
 #include "services/ui/public/interfaces/window_server_test.mojom.h"
 
 namespace ui {
@@ -18,12 +17,10 @@ struct WindowId;
 
 class WindowServerTestImpl : public mojom::WindowServerTest {
  public:
-  WindowServerTestImpl(WindowServer* server,
-                       mojo::InterfaceRequest<WindowServerTest> request);
-
- private:
+  explicit WindowServerTestImpl(WindowServer* server);
   ~WindowServerTestImpl() override;
 
+ private:
   void OnWindowPaint(const std::string& name,
                      const EnsureClientHasDrawnWindowCallback& cb,
                      ServerWindow* window);
@@ -34,7 +31,6 @@ class WindowServerTestImpl : public mojom::WindowServerTest {
       const EnsureClientHasDrawnWindowCallback& callback) override;
 
   WindowServer* window_server_;
-  mojo::StrongBinding<WindowServerTest> binding_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowServerTestImpl);
 };