TestingPlatformSupport: register Platform instance correctly

third_party/WebKit/Source/modules/webaudio/BaseAudioContextTest.cpp

 // Copyright 2016 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 "modules/webaudio/BaseAudioContext.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/DocumentUserGestureToken.h"
 #include "core/frame/FrameOwner.h"
 #include "core/frame/FrameTypes.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/Settings.h"
 #include "core/loader/DocumentLoader.h"
 #include "core/loader/EmptyClients.h"
 #include "core/testing/DummyPageHolder.h"
 #include "platform/UserGestureIndicator.h"
 #include "platform/testing/HistogramTester.h"
 #include "platform/testing/TestingPlatformSupport.h"
 #include "public/platform/WebAudioDevice.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "wtf/PtrUtil.h"
 
 namespace blink {
 
 namespace {
 
 const char* const kCrossOriginMetric = "WebAudio.Autoplay.CrossOrigin";
 
 class MockCrossOriginFrameLoaderClient final : public EmptyFrameLoaderClient {
  public:
   static MockCrossOriginFrameLoaderClient* create(Frame* parent) {
@@ skipping 42 matching lines @@
   double audioHardwareSampleRate() override { return 44100; }
 };
 
 }  // anonymous namespace
 
 class BaseAudioContextTest : public ::testing::Test {
  protected:
   using AutoplayStatus = BaseAudioContext::AutoplayStatus;
 
   void SetUp() override {
+    m_testPlatform.reset(WTF::makeUnique<BaseAudioContextTestPlatform>());
     m_dummyPageHolder = DummyPageHolder::create();
     m_dummyFrameOwner = DummyFrameOwner::create();
     document().updateSecurityOrigin(
         SecurityOrigin::create("https", "example.com", 80));
   }
 
   void TearDown() override {
     if (m_childFrame)
       m_childFrame->detach(FrameDetachType::Remove);
   }
@@ skipping 24 matching lines @@
   void recordAutoplayStatus(BaseAudioContext* audioContext) {
     audioContext->recordAutoplayStatus();
   }
 
  private:
   std::unique_ptr<DummyPageHolder> m_dummyPageHolder;
   Persistent<DummyFrameOwner> m_dummyFrameOwner;
 
   Persistent<LocalFrame> m_childFrame;
 
-  BaseAudioContextTestPlatform m_testPlatform;
+  ScopedTestingPlatformSupport<BaseAudioContextTestPlatform> m_testPlatform;
 };
 
 TEST_F(BaseAudioContextTest, AutoplayMetrics_NoRestriction) {
   HistogramTester histogramTester;
 
   BaseAudioContext* audioContext =
       BaseAudioContext::create(document(), ASSERT_NO_EXCEPTION);
   recordAutoplayStatus(audioContext);
 
   histogramTester.expectTotalCount(kCrossOriginMetric, 0);
@@ skipping 141 matching lines @@
   audioContext->resumeContext(getScriptStateFrom(childDocument()));
   rejectPendingResolvers(audioContext);
   recordAutoplayStatus(audioContext);
 
   histogramTester.expectBucketCount(kCrossOriginMetric,
                                     AutoplayStatus::AutoplayStatusSucceeded, 1);
   histogramTester.expectTotalCount(kCrossOriginMetric, 1);
 }
 
 }  // namespace blink