SkBitmap and SkPixelRef no longer need lock/unlock

content/test/image_decoder_test.cc

Index: content/test/image_decoder_test.cc
diff --git a/content/test/image_decoder_test.cc b/content/test/image_decoder_test.cc
index 1ff6b7bcd27028ca8044950607f91b9afaf528f3..ff682f4e7387e347a42a358724d0abfe229ceb02 100644
--- a/content/test/image_decoder_test.cc
+++ b/content/test/image_decoder_test.cc
@@ -61,7 +61,6 @@ base::FilePath GetMD5SumPath(const base::FilePath& path) {
 void SaveMD5Sum(const base::FilePath& path, const blink::WebImage& web_image) {
   // Calculate MD5 sum.
   base::MD5Digest digest;
-  web_image.getSkBitmap().lockPixels();
   base::MD5Sum(web_image.getSkBitmap().getPixels(),
                web_image.getSkBitmap().width() *
                    web_image.getSkBitmap().height() * sizeof(uint32_t),
@@ -71,7 +70,6 @@ void SaveMD5Sum(const base::FilePath& path, const blink::WebImage& web_image) {
   int bytes_written = base::WriteFile(
       path, reinterpret_cast<const char*>(&digest), sizeof digest);
   ASSERT_EQ(sizeof digest, bytes_written);
-  web_image.getSkBitmap().unlockPixels();
 }
 #endif
 
@@ -89,7 +87,6 @@ void VerifyImage(const blink::WebImageDecoder& decoder,
   // Calculate MD5 sum.
   base::MD5Digest actual_digest;
   blink::WebImage web_image = decoder.GetFrameAtIndex(frame_index);
-  web_image.GetSkBitmap().lockPixels();
   base::MD5Sum(web_image.GetSkBitmap().getPixels(),
                web_image.GetSkBitmap().width() *
                    web_image.GetSkBitmap().height() * sizeof(uint32_t),
@@ -105,7 +102,6 @@ void VerifyImage(const blink::WebImageDecoder& decoder,
   // Verify that the sums are the same.
   EXPECT_EQ(0, memcmp(&expected_digest, &actual_digest, sizeof actual_digest))
       << path.value();
-  web_image.GetSkBitmap().unlockPixels();
 }
 #endif