Oilpan: fix build after r186803.

Source/web/WebEncryptedMediaRequest.cpp

 // Copyright 2014 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 "config.h"
 
 #include "public/platform/WebEncryptedMediaRequest.h"
 
 #include "core/dom/ExecutionContext.h"
 #include "modules/encryptedmedia/EncryptedMediaRequest.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "public/platform/WebMediaKeySystemConfiguration.h"
 #include "public/platform/WebString.h"
 #include "public/platform/WebVector.h"
 #include "public/web/WebSecurityOrigin.h"
 
 namespace blink {
 
 WebEncryptedMediaRequest::WebEncryptedMediaRequest()
 {
 }
 
 WebEncryptedMediaRequest::WebEncryptedMediaRequest(const WebEncryptedMediaRequest& request)
 {
     assign(request);
 }
 
-WebEncryptedMediaRequest::WebEncryptedMediaRequest(const PassRefPtr<EncryptedMediaRequest>& request)
+WebEncryptedMediaRequest::WebEncryptedMediaRequest(EncryptedMediaRequest* request)
     : m_private(request)
 {
 }
 
 WebEncryptedMediaRequest::~WebEncryptedMediaRequest()
 {
     reset();
 }
 
 WebString WebEncryptedMediaRequest::keySystem() const
@@ skipping 25 matching lines @@
 {
     m_private = other.m_private;
 }
 
 void WebEncryptedMediaRequest::reset()
 {
     m_private.reset();
 }
 
 } // namespace blink