Move gif image decoder to SkCodec

skia/BUILD.gn

Index: skia/BUILD.gn
diff --git a/skia/BUILD.gn b/skia/BUILD.gn
index be2084ee18eb358911be02f79577755c8b53d495..7fd282e44ba16e70fb40196f7a3c0b3a5a4542ce 100644
--- a/skia/BUILD.gn
+++ b/skia/BUILD.gn
@@ -29,6 +29,7 @@ config("skia_config") {
     "config",
     "ext",
     "//third_party/skia/include/c",
+    "//third_party/skia/include/codec",
     "//third_party/skia/include/config",
     "//third_party/skia/include/core",
     "//third_party/skia/include/effects",
@@ -92,6 +93,7 @@ config("skia_library_config") {
   include_dirs = [
     "//third_party/skia/include/private",
     "//third_party/skia/include/client/android",
+    "//third_party/skia/src/codec",
     "//third_party/skia/src/core",
     "//third_party/skia/src/image",
     "//third_party/skia/src/opts",
@@ -100,6 +102,7 @@ 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" ]
@@ -231,6 +234,18 @@ component("skia") {
   sources += skia_effects_sources
   sources += skia_utils_sources
   sources += [
+    "//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/SkMaskSwizzler.cpp",
+    "//third_party/skia/src/codec/SkMasks.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/fonts/SkFontMgr_indirect.cpp",
     "//third_party/skia/src/fonts/SkRemotableFontMgr.cpp",
     "//third_party/skia/src/ports/SkFontConfigInterface.cpp",
@@ -261,6 +276,7 @@ component("skia") {
     "//third_party/skia/src/xps/SkDocument_XPS.cpp",
     "//third_party/skia/src/xps/SkDocument_XPS_None.cpp",
     "//third_party/skia/src/xps/SkXPSDevice.cpp",
+    "//third_party/skia/third_party/gif/SkGifImageReader.cpp",
   ]
 
   if (is_mac) {