Revert of [blink] Unique pointers in Platform.h

third_party/WebKit/Source/web/tests/ActiveConnectionThrottlingTest.cpp

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code if governed by a BSD-style license that can be
 // found in LICENSE file.
 
 #include "core/exported/WebViewBase.h"
 #include "platform/scheduler/renderer/web_view_scheduler.h"
 #include "platform/testing/TestingPlatformSupport.h"
-#include "platform/wtf/PtrUtil.h"
 #include "public/platform/WebRTCError.h"
 #include "public/platform/WebRTCPeerConnectionHandler.h"
 #include "public/platform/WebRTCRtpReceiver.h"
 #include "public/platform/WebRTCSessionDescription.h"
 #include "public/web/WebScriptSource.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "web/WebLocalFrameImpl.h"
 #include "web/tests/sim/SimRequest.h"
 #include "web/tests/sim/SimTest.h"
 
@@ skipping 72 matching lines @@
   }
   WebRTCDTMFSenderHandler* CreateDTMFSender(
       const WebMediaStreamTrack&) override {
     return nullptr;
   }
   void Stop() override {}
 };
 
 class TestingPlatformSupportWithWebRTC : public TestingPlatformSupport {
  public:
-  std::unique_ptr<blink::WebRTCPeerConnectionHandler>
-  CreateRTCPeerConnectionHandler(
+  blink::WebRTCPeerConnectionHandler* CreateRTCPeerConnectionHandler(
       blink::WebRTCPeerConnectionHandlerClient*) override {
-    return WTF::MakeUnique<MockWebRTCPeerConnectionHandler>();
+    return new MockWebRTCPeerConnectionHandler();
   }
 };
 
 }  // namespace
 
 TEST_F(ActiveConnectionThrottlingTest, WebRTCStopsThrottling) {
   ScopedTestingPlatformSupport<TestingPlatformSupportWithWebRTC> platform;
 
   SimRequest main_resource("https://example.com/", "text/html");
 
   LoadURL("https://example.com/");
 
   EXPECT_FALSE(WebView().Scheduler()->HasActiveConnectionForTest());
 
   main_resource.Complete(
       "(<script>"
       "  var data_channel = new RTCPeerConnection();"
       "</script>)");
 
   EXPECT_TRUE(WebView().Scheduler()->HasActiveConnectionForTest());
 
   MainFrame().ExecuteScript(WebString("data_channel.close();"));
 
   EXPECT_FALSE(WebView().Scheduler()->HasActiveConnectionForTest());
 }
 
 }  // namespace blink