Replaced PassRefPtr copies with moves in Source/platform.

third_party/WebKit/Source/platform/image-decoders/SegmentReader.cpp

 // Copyright 2016 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 "platform/image-decoders/SegmentReader.h"
 
 #include "platform/SharedBuffer.h"
 #include "third_party/skia/include/core/SkData.h"
 #include "wtf/Assertions.h"
 #include "wtf/Noncopyable.h"
@@ skipping 165 matching lines @@
         memcpy(dst, iter.data(), size);
         dst += size;
     } while (iter.next());
     return data;
 }
 
 // SegmentReader ---------------------------------------------------------------
 
 PassRefPtr<SegmentReader> SegmentReader::createFromSharedBuffer(PassRefPtr<SharedBuffer> buffer)
 {
-    return adoptRef(new SharedBufferSegmentReader(buffer));
+    return adoptRef(new SharedBufferSegmentReader(std::move(buffer)));
 }
 
 PassRefPtr<SegmentReader> SegmentReader::createFromSkData(sk_sp<SkData> data)
 {
     return adoptRef(new DataSegmentReader(std::move(data)));
 }
 
 PassRefPtr<SegmentReader> SegmentReader::createFromSkROBuffer(sk_sp<SkROBuffer> buffer)
 {
     return adoptRef(new ROBufferSegmentReader(std::move(buffer)));
 }
 
 } // namespace blink