Removed calls to RefPtr::Release in return statements with auto move.

third_party/WebKit/Source/platform/fonts/shaping/CachingWordShapeIterator.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/fonts/shaping/CachingWordShapeIterator.h"
 
 #include "platform/fonts/shaping/HarfBuzzShaper.h"
 
 namespace blink {
 
 PassRefPtr<const ShapeResult> CachingWordShapeIterator::ShapeWordWithoutSpacing(
     const TextRun& word_run,
     const Font* font) {
   ShapeCacheEntry* cache_entry = shape_cache_->Add(word_run, ShapeCacheEntry());
   if (cache_entry && cache_entry->shape_result_)
     return cache_entry->shape_result_;
 
   unsigned word_length = 0;
   std::unique_ptr<UChar[]> word_text = word_run.NormalizedUTF16(&word_length);
 
   HarfBuzzShaper shaper(word_text.get(), word_length);
   RefPtr<const ShapeResult> shape_result =
       shaper.Shape(font, word_run.Direction());
   if (!shape_result)
     return nullptr;
 
   if (cache_entry)
     cache_entry->shape_result_ = shape_result;
 
-  return shape_result.Release();
+  return shape_result;
 }
 
 }  // namespace blink