Privatize StrongBinding lifetime management

content/browser/vibration_browsertest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stdint.h>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 32 matching lines @@
 void ResetGlobalValues() {
   g_vibrate_milliseconds = -1;
   g_cancelled = false;
 
   g_wait_vibrate_runner = new MessageLoopRunner();
   g_wait_cancel_runner = new MessageLoopRunner();
 }
 
 class FakeVibrationManager : public device::VibrationManager {
  public:
-  static void Create(mojo::InterfaceRequest<VibrationManager> request) {
-    new FakeVibrationManager(std::move(request));
+  FakeVibrationManager() {}
+  ~FakeVibrationManager() override {}
+
+  static void Create(device::VibrationManagerRequest request) {
+    mojo::MakeStrongBinding(base::MakeUnique<FakeVibrationManager>(),
+                            std::move(request));
   }
 
  private:
-  FakeVibrationManager(mojo::InterfaceRequest<VibrationManager> request)
-      : binding_(this, std::move(request)) {}
-
-  ~FakeVibrationManager() override {}
-
   void Vibrate(int64_t milliseconds, const VibrateCallback& callback) override {
     g_vibrate_milliseconds = milliseconds;
     callback.Run();
     g_wait_vibrate_runner->Quit();
   }
 
   void Cancel(const CancelCallback& callback) override {
     g_cancelled = true;
     callback.Run();
     g_wait_cancel_runner->Quit();
   }
-
-  mojo::StrongBinding<VibrationManager> binding_;
 };
 
 class VibrationTest : public ContentBrowserTest {
  public:
   VibrationTest() {}
 
   void SetUpOnMainThread() override {
     ResetGlobalValues();
     GetMainFrame()->GetInterfaceRegistry()->AddInterface(
         base::Bind(&FakeVibrationManager::Create));
@@ skipping 110 matching lines @@
   g_wait_vibrate_runner->Run();
   ASSERT_TRUE(DestroyIframe());
   g_wait_cancel_runner->Run();
 
   ASSERT_TRUE(g_cancelled);
 }
 
 }  //  namespace
 
 }  //  namespace content