SkBitmap and SkPixelRef no longer need lock/unlock

components/history/core/browser/history_backend_unittest.cc

 // Copyright (c) 2012 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 "components/history/core/browser/history_backend.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <memory>
@@ skipping 467 matching lines @@
            *bitmap_data->front() == expected_data;
   }
 
   // Returns true if |bitmap_data| is of |color|.
   bool BitmapColorEqual(SkColor expected_color,
                         scoped_refptr<base::RefCountedMemory> bitmap_data) {
     SkBitmap bitmap;
     if (!gfx::PNGCodec::Decode(bitmap_data->front(), bitmap_data->size(),
                                &bitmap))
       return false;
-    SkAutoLockPixels bitmap_lock(bitmap);
     return expected_color == bitmap.getColor(0, 0);
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(HistoryBackendTest);
 };
 
 class InMemoryHistoryBackendTest : public HistoryBackendTestBase {
  public:
   InMemoryHistoryBackendTest() {}
@@ skipping 3427 matching lines @@
   backend_->QueryMostVisitedURLs(100, 100, &most_visited);
 
   const base::string16 kSomeTitle;  // Ignored by equality operator.
   EXPECT_THAT(
       most_visited,
       ElementsAre(MostVisitedURL(GURL("http://example1.com"), kSomeTitle),
                   MostVisitedURL(GURL("http://example5.com"), kSomeTitle)));
 }
 
 }  // namespace history