Replaced PassRefPtr copies with moves in Source/core.

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

 /*
  * Copyright (C) 2008 Apple 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 128 matching lines @@
     , m_hasBackingFile(true)
     , m_userVisibility(userVisibility)
     , m_path(path)
     , m_name(name)
     , m_snapshotSize(-1)
     , m_snapshotModificationTimeMS(invalidFileTime())
 {
 }
 
 File::File(const String& path, const String& name, const String& relativePath, UserVisibility userVisibility, bool hasSnapshotData, uint64_t size, double lastModified, PassRefPtr<BlobDataHandle> blobDataHandle)
-    : Blob(blobDataHandle)
+    : Blob(std::move(blobDataHandle))
     , m_hasBackingFile(!path.isEmpty() || !relativePath.isEmpty())
     , m_userVisibility(userVisibility)
     , m_path(path)
     , m_name(name)
     , m_snapshotSize(hasSnapshotData ? static_cast<long long>(size) : -1)
     , m_snapshotModificationTimeMS(hasSnapshotData ? lastModified : invalidFileTime())
     , m_relativePath(relativePath)
 {
 }
 
 File::File(const String& name, double modificationTimeMS, PassRefPtr<BlobDataHandle> blobDataHandle)
-    : Blob(blobDataHandle)
+    : Blob(std::move(blobDataHandle))
     , m_hasBackingFile(false)
     , m_userVisibility(File::IsNotUserVisible)
     , m_name(name)
     , m_snapshotSize(Blob::size())
     , m_snapshotModificationTimeMS(modificationTimeMS)
 {
 }
 
 File::File(const String& name, const FileMetadata& metadata, UserVisibility userVisibility)
     : Blob(BlobDataHandle::create(createBlobDataForFileWithMetadata(name, metadata), metadata.length))
@@ skipping 186 matching lines @@
     if (m_fileSystemURL.isEmpty() != other.m_fileSystemURL.isEmpty())
         return false;
 
     if (!m_fileSystemURL.isEmpty())
         return m_fileSystemURL == other.m_fileSystemURL;
 
     return uuid() == other.uuid();
 }
 
 } // namespace blink