Update from https://crrev.com/306655

skia/ext/platform_canvas_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.
 
 // TODO(awalker): clean up the const/non-const reference handling in this test
 
 #include "build/build_config.h"
 
 #if defined(OS_MACOSX)
 #import <ApplicationServices/ApplicationServices.h>
@@ skipping 396 matching lines @@
   EXPECT_FALSE(platform_bitmap->GetBitmap().empty());
   EXPECT_FALSE(platform_bitmap->GetBitmap().isNull());
   EXPECT_EQ(kWidth, platform_bitmap->GetBitmap().width());
   EXPECT_EQ(kHeight, platform_bitmap->GetBitmap().height());
   EXPECT_LE(static_cast<size_t>(platform_bitmap->GetBitmap().width()*4),
             platform_bitmap->GetBitmap().rowBytes());
   EXPECT_EQ(kN32_SkColorType,  // Same for all platforms.
             platform_bitmap->GetBitmap().colorType());
   EXPECT_TRUE(platform_bitmap->GetBitmap().lockPixelsAreWritable());
   EXPECT_TRUE(platform_bitmap->GetBitmap().pixelRef()->isLocked());
-  EXPECT_EQ(1, platform_bitmap->GetBitmap().pixelRef()->getRefCnt());
+  EXPECT_TRUE(platform_bitmap->GetBitmap().pixelRef()->unique());
 
   *(platform_bitmap->GetBitmap().getAddr32(10, 20)) = 0xDEED1020;
   *(platform_bitmap->GetBitmap().getAddr32(20, 30)) = 0xDEED2030;
 
   SkBitmap sk_bitmap = platform_bitmap->GetBitmap();
   sk_bitmap.lockPixels();
 
-  EXPECT_EQ(2, platform_bitmap->GetBitmap().pixelRef()->getRefCnt());
-  EXPECT_EQ(2, sk_bitmap.pixelRef()->getRefCnt());
+  EXPECT_FALSE(platform_bitmap->GetBitmap().pixelRef()->unique());
+  EXPECT_FALSE(sk_bitmap.pixelRef()->unique());
 
   EXPECT_EQ(0xDEED1020, *sk_bitmap.getAddr32(10, 20));
   EXPECT_EQ(0xDEED2030, *sk_bitmap.getAddr32(20, 30));
 
   *(platform_bitmap->GetBitmap().getAddr32(30, 40)) = 0xDEED3040;
 
   // The SkBitmaps derived from a PlatformBitmap must be capable of outliving
   // the PlatformBitmap.
   platform_bitmap.reset();
 
-  EXPECT_EQ(1, sk_bitmap.pixelRef()->getRefCnt());
+  EXPECT_TRUE(sk_bitmap.pixelRef()->unique());
 
   EXPECT_EQ(0xDEED1020, *sk_bitmap.getAddr32(10, 20));
   EXPECT_EQ(0xDEED2030, *sk_bitmap.getAddr32(20, 30));
   EXPECT_EQ(0xDEED3040, *sk_bitmap.getAddr32(30, 40));
   sk_bitmap.unlockPixels();
 
   EXPECT_EQ(NULL, sk_bitmap.getPixels());
 
   sk_bitmap.lockPixels();
   EXPECT_EQ(0xDEED1020, *sk_bitmap.getAddr32(10, 20));
   EXPECT_EQ(0xDEED2030, *sk_bitmap.getAddr32(20, 30));
   EXPECT_EQ(0xDEED3040, *sk_bitmap.getAddr32(30, 40));
   sk_bitmap.unlockPixels();
 }
 
 
 }  // namespace skia