Move gif image decoder to SkCodec

skia/BUILD.gn

Index: skia/BUILD.gn
diff --git a/skia/BUILD.gn b/skia/BUILD.gn
index 7b75a07936693b51d40f51831957831e3e263392..9ad20490926dc1b1875d793a6c8c74c8ea05227f 100644
--- a/skia/BUILD.gn
+++ b/skia/BUILD.gn
@@ -44,6 +44,10 @@ config("skia_config") {
     "//third_party/skia/third_party/vulkan",
   ]
 
+  if (!is_ios) {
+    include_dirs += [ "//third_party/skia/include/codec" ]
+  }
+
   defines = skia_for_chromium_defines
   defines += [
     "SK_HAS_PNG_LIBRARY",
@@ -111,6 +115,7 @@ config("skia_library_config") {
     "//third_party/skia/src/sfnt",
     "//third_party/skia/src/utils",
     "//third_party/skia/src/lazy",
+    "//third_party/skia/third_party/gif",
   ]
   if (is_mac || is_ios) {
     include_dirs += [ "//third_party/skia/include/utils/mac" ]
@@ -295,6 +300,30 @@ component("skia") {
     "//third_party/skia/src/sfnt/SkOTTable_name.cpp",
     "//third_party/skia/src/sfnt/SkOTUtils.cpp",
   ]
+  if (!is_ios) {
+    sources += [
+      "//third_party/skia/src/codec/SkBmpBaseCodec.cpp",
+      "//third_party/skia/src/codec/SkBmpCodec.cpp",
+      "//third_party/skia/src/codec/SkBmpMaskCodec.cpp",
+      "//third_party/skia/src/codec/SkBmpRLECodec.cpp",
+      "//third_party/skia/src/codec/SkBmpStandardCodec.cpp",
+      "//third_party/skia/src/codec/SkCodec.cpp",
+      "//third_party/skia/src/codec/SkGifCodec.cpp",
+      "//third_party/skia/src/codec/SkIcoCodec.cpp",
+      "//third_party/skia/src/codec/SkJpegCodec.cpp",
+      "//third_party/skia/src/codec/SkJpegDecoderMgr.cpp",
+      "//third_party/skia/src/codec/SkJpegUtility.cpp",
+      "//third_party/skia/src/codec/SkMaskSwizzler.cpp",
+      "//third_party/skia/src/codec/SkMasks.cpp",
+      "//third_party/skia/src/codec/SkPngCodec.cpp",
+      "//third_party/skia/src/codec/SkSampler.cpp",
+      "//third_party/skia/src/codec/SkStreamBuffer.cpp",
+      "//third_party/skia/src/codec/SkSwizzler.cpp",
+      "//third_party/skia/src/codec/SkWbmpCodec.cpp",
+      "//third_party/skia/src/codec/SkWebpCodec.cpp",
+      "//third_party/skia/third_party/gif/SkGifImageReader.cpp",
+    ]
+  }
 
   # This and skia_opts are really the same conceptual target so share headers.
   allow_circular_includes_from = [ ":skia_opts" ]