Replaced PassRefPtr copies with moves in Source/core.

third_party/WebKit/Source/core/fileapi/FileReaderLoader.cpp

 /*
  * Copyright (C) 2010 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 74 matching lines @@
 {
     // The blob is read by routing through the request handling layer given a temporary public url.
     m_urlForReading = BlobURL::createPublicURL(executionContext.getSecurityOrigin());
     if (m_urlForReading.isEmpty()) {
         failed(FileError::kSecurityErr);
         return;
     }
 
     if (blobData) {
         ASSERT(!stream);
-        BlobRegistry::registerPublicBlobURL(executionContext.getSecurityOrigin(), m_urlForReading, blobData);
+        BlobRegistry::registerPublicBlobURL(executionContext.getSecurityOrigin(), m_urlForReading, std::move(blobData));
     } else {
         ASSERT(stream);
         BlobRegistry::registerStreamURL(executionContext.getSecurityOrigin(), m_urlForReading, stream->url());
     }
 
     // Construct and load the request.
     ResourceRequest request(m_urlForReading);
     request.setExternalRequestStateFromRequestorAddressSpace(executionContext.securityContext().addressSpace());
 
     // FIXME: Should this really be 'internal'? Do we know anything about the actual request that generated this fetch?
@@ skipping 19 matching lines @@
         m_loader->start(request);
     } else {
         ThreadableLoader::loadResourceSynchronously(executionContext, request, *this, options, resourceLoaderOptions);
     }
 }
 
 void FileReaderLoader::start(ExecutionContext* executionContext, PassRefPtr<BlobDataHandle> blobData)
 {
     ASSERT(executionContext);
     m_urlForReadingIsStream = false;
-    startInternal(*executionContext, 0, blobData);
+    startInternal(*executionContext, 0, std::move(blobData));
 }
 
 void FileReaderLoader::start(ExecutionContext* executionContext, const Stream& stream, unsigned readSize)
 {
     ASSERT(executionContext);
     if (readSize > 0) {
         m_hasRange = true;
         m_rangeStart = 0;
         m_rangeEnd = readSize - 1; // End is inclusive so (0,0) is a 1-byte read.
     }
@@ skipping 262 matching lines @@
     m_stringResult = builder.toString();
 }
 
 void FileReaderLoader::setEncoding(const String& encoding)
 {
     if (!encoding.isEmpty())
         m_encoding = WTF::TextEncoding(encoding);
 }
 
 } // namespace blink