Revert of [blink] Unique pointers in Platform.h

third_party/WebKit/Source/modules/peerconnection/RTCPeerConnection.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 485 matching lines @@
 
   if (!document->GetFrame()) {
     closed_ = true;
     stopped_ = true;
     exception_state.ThrowDOMException(
         kNotSupportedError,
         "PeerConnections may not be created in detached documents.");
     return;
   }
 
-  peer_handler_ = Platform::Current()->CreateRTCPeerConnectionHandler(this);
+  peer_handler_ = WTF::WrapUnique(
+      Platform::Current()->CreateRTCPeerConnectionHandler(this));
   if (!peer_handler_) {
     closed_ = true;
     stopped_ = true;
     exception_state.ThrowDOMException(kNotSupportedError,
                                       "No PeerConnection handler can be "
                                       "created, perhaps WebRTC is disabled?");
     return;
   }
 
   document->GetFrame()
@@ skipping 400 matching lines @@
       return ScriptPromise::RejectWithDOMException(
           script_state, DOMException::Create(kNotSupportedError,
                                              "The 1st argument provided is an "
                                              "AlgorithmIdentifier, but the "
                                              "algorithm is not supported."));
       break;
   }
   DCHECK(!key_params.IsNull());
 
   std::unique_ptr<WebRTCCertificateGenerator> certificate_generator =
-      Platform::Current()->CreateRTCCertificateGenerator();
+      WTF::WrapUnique(Platform::Current()->CreateRTCCertificateGenerator());
 
   // |keyParams| was successfully constructed, but does the certificate
   // generator support these parameters?
   if (!certificate_generator->IsSupportedKeyParams(key_params.Get())) {
     return ScriptPromise::RejectWithDOMException(
         script_state,
         DOMException::Create(kNotSupportedError, unsupported_params_string));
   }
 
   ScriptPromiseResolver* resolver = ScriptPromiseResolver::Create(script_state);
@@ skipping 614 matching lines @@
   visitor->Trace(local_streams_);
   visitor->Trace(remote_streams_);
   visitor->Trace(rtp_receivers_);
   visitor->Trace(dispatch_scheduled_event_runner_);
   visitor->Trace(scheduled_events_);
   EventTargetWithInlineData::Trace(visitor);
   SuspendableObject::Trace(visitor);
 }
 
 }  // namespace blink