Replaced RefPtr::release with std::move in Source/platform.

third_party/WebKit/Source/platform/fonts/FontFamily.h

 /*
  * Copyright (C) 2003, 2006, 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 58 matching lines @@
  private:
   SharedFontFamily() {}
 };
 
 PLATFORM_EXPORT bool operator==(const FontFamily&, const FontFamily&);
 inline bool operator!=(const FontFamily& a, const FontFamily& b) {
   return !(a == b);
 }
 
 inline FontFamily::~FontFamily() {
-  RefPtr<SharedFontFamily> reaper = m_next.release();
+  RefPtr<SharedFontFamily> reaper = std::move(m_next);
   while (reaper && reaper->hasOneRef()) {
     // implicitly protects reaper->next, then derefs reaper
     reaper = reaper->releaseNext();
   }
 }
 
 inline const FontFamily* FontFamily::next() const {
   return m_next.get();
 }
 
 inline void FontFamily::appendFamily(PassRefPtr<SharedFontFamily> family) {
   m_next = family;
 }
 
 inline PassRefPtr<SharedFontFamily> FontFamily::releaseNext() {
-  return m_next.release();
+  return std::move(m_next);
 }
 
 }  // namespace blink
 
 #endif