Use SkPngEncoder in gfx jpeg_codec

ui/gfx/codec/png_codec_unittest.cc

Index: ui/gfx/codec/png_codec_unittest.cc
diff --git a/ui/gfx/codec/png_codec_unittest.cc b/ui/gfx/codec/png_codec_unittest.cc
index faf665d670847e0536356aa51e075322ad6462f0..e5445a38d0cf73830a4fa11578887406b374e2ff 100644
--- a/ui/gfx/codec/png_codec_unittest.cc
+++ b/ui/gfx/codec/png_codec_unittest.cc
@@ -286,9 +286,8 @@ TEST(PNGCodec, EncodeDecodeRGBA) {
 
   // encode
   std::vector<unsigned char> encoded;
-  ASSERT_TRUE(PNGCodec::Encode(&original[0], PNGCodec::FORMAT_RGBA,
-                               Size(w, h), w * 4, false,
-                               std::vector<PNGCodec::Comment>(),
+  ASSERT_TRUE(PNGCodec::Encode(&original[0], PNGCodec::FORMAT_RGBA, Size(w, h),

[msarett1, 2017/06/23 22:50:32]

Why is this file changed?

[liyuqian, 2017/07/05 15:59:40]

I've reverted the change. I think it's because that I changed it in an earlier
version, and my revert isn't complete.

+                               w * 4, false, std::vector<PNGCodec::Comment>(),
                                &encoded));
 
   // decode, it should have the same size as the original
@@ -315,9 +314,8 @@ TEST(PNGCodec, EncodeDecodeBGRA) {
 
   // Encode.
   std::vector<unsigned char> encoded;
-  ASSERT_TRUE(PNGCodec::Encode(&original[0], PNGCodec::FORMAT_BGRA,
-                               Size(w, h), w * 4, false,
-                               std::vector<PNGCodec::Comment>(),
+  ASSERT_TRUE(PNGCodec::Encode(&original[0], PNGCodec::FORMAT_BGRA, Size(w, h),
+                               w * 4, false, std::vector<PNGCodec::Comment>(),
                                &encoded));
 
   // Decode, it should have the same size as the original.