Replaced PassRefPtr copies with moves in Source/core.

third_party/WebKit/Source/core/xmlhttprequest/XMLHttpRequest.cpp

 /*
  *  Copyright (C) 2004, 2006, 2008 Apple Inc. All rights reserved.
  *  Copyright (C) 2005-2007 Alexey Proskuryakov <ap@webkit.org>
  *  Copyright (C) 2007, 2008 Julien Chaffraix <jchaffraix@webkit.org>
  *  Copyright (C) 2008, 2011 Google Inc. All rights reserved.
  *  Copyright (C) 2012 Intel Corporation
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser General Public
  *  License as published by the Free Software Foundation; either
@@ skipping 146 matching lines @@
 
     return true;
 }
 
 } // namespace
 
 class XMLHttpRequest::BlobLoader final : public GarbageCollectedFinalized<XMLHttpRequest::BlobLoader>, public FileReaderLoaderClient {
 public:
     static BlobLoader* create(XMLHttpRequest* xhr, PassRefPtr<BlobDataHandle> handle)
     {
-        return new BlobLoader(xhr, handle);
+        return new BlobLoader(xhr, std::move(handle));
     }
 
     // FileReaderLoaderClient functions.
     void didStartLoading() override {}
     void didReceiveDataForClient(const char* data, unsigned length) override
     {
         ASSERT(length <= INT_MAX);
         m_xhr->didReceiveData(data, length);
     }
     void didFinishLoading() override
@@ skipping 13 matching lines @@
     DEFINE_INLINE_TRACE()
     {
         visitor->trace(m_xhr);
     }
 
 private:
     BlobLoader(XMLHttpRequest* xhr, PassRefPtr<BlobDataHandle> handle)
         : m_xhr(xhr)
         , m_loader(FileReaderLoader::create(FileReaderLoader::ReadByClient, this))
     {
-        m_loader->start(m_xhr->getExecutionContext(), handle);
+        m_loader->start(m_xhr->getExecutionContext(), std::move(handle));
     }
 
     Member<XMLHttpRequest> m_xhr;
     std::unique_ptr<FileReaderLoader> m_loader;
 };
 
 XMLHttpRequest* XMLHttpRequest::create(ScriptState* scriptState)
 {
     ExecutionContext* context = scriptState->getExecutionContext();
     DOMWrapperWorld& world = scriptState->world();
@@ skipping 693 matching lines @@
     request.setRequestContext(WebURLRequest::RequestContextXMLHttpRequest);
     request.setFetchCredentialsMode(m_includeCredentials ? WebURLRequest::FetchCredentialsModeInclude : WebURLRequest::FetchCredentialsModeSameOrigin);
     request.setSkipServiceWorker(m_isolatedWorldSecurityOrigin.get() ? WebURLRequest::SkipServiceWorker::All : WebURLRequest::SkipServiceWorker::None);
     request.setExternalRequestStateFromRequestorAddressSpace(executionContext.securityContext().addressSpace());
 
     InspectorInstrumentation::willLoadXHR(&executionContext, this, this, m_method, m_url, m_async, httpBody ? httpBody->deepCopy() : nullptr, m_requestHeaders, m_includeCredentials);
 
     if (httpBody) {
         ASSERT(m_method != HTTPNames::GET);
         ASSERT(m_method != HTTPNames::HEAD);
-        request.setHTTPBody(httpBody);
+        request.setHTTPBody(std::move(httpBody));
     }
 
     if (m_requestHeaders.size() > 0)
         request.addHTTPHeaderFields(m_requestHeaders);
 
     ThreadableLoaderOptions options;
     options.preflightPolicy = uploadEvents ? ForcePreflight : ConsiderPreflight;
     options.crossOriginRequestPolicy = UseAccessControl;
     options.initiator = FetchInitiatorTypeNames::xmlhttprequest;
     options.contentSecurityPolicyEnforcement = ContentSecurityPolicy::shouldBypassMainWorld(&executionContext) ? DoNotEnforceContentSecurityPolicy : EnforceContentSecurityPolicy;
@@ skipping 818 matching lines @@
     visitor->traceWrappers(m_responseDocument);
     visitor->traceWrappers(m_responseArrayBuffer);
 }
 
 std::ostream& operator<<(std::ostream& ostream, const XMLHttpRequest* xhr)
 {
     return ostream << "XMLHttpRequest " << static_cast<const void*>(xhr);
 }
 
 } // namespace blink