Compile Skia image encoders

ui/gfx/codec/BUILD.gn

 # Copyright 2017 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.
 
 import("//build/config/ui.gni")
 
 component("codec") {
   sources = [
     "codec_export.h",
     "jpeg_codec.cc",
     "jpeg_codec.h",
     "png_codec.cc",
     "png_codec.h",
-    "skia_image_encoder_adapter.cc",
-    "skia_image_encoder_adapter.h",
   ]
 
   deps = [
     "//base",
     "//skia",
     "//third_party/libpng",
     "//ui/gfx:geometry_skia",
     "//ui/gfx:gfx_export",
     "//ui/gfx/geometry",
   ]
@@ skipping 16 matching lines @@
     deps += [ "//third_party/libjpeg" ]
   }
 
   if (is_win) {
     cflags = [ "/wd4324" ]  # Structure was padded due to __declspec(align()),
                             # which is uninteresting.
   }
 
   defines = [ "CODEC_IMPLEMENTATION" ]
 }