Move gif image decoder to SkCodec

skia/BUILD.gn

Index: skia/BUILD.gn
diff --git a/skia/BUILD.gn b/skia/BUILD.gn
index 46b05ee966dc4e50c4541e68b9d3bac7cb90ecd3..3e0053ea090186b1de5da4ca9a91b6f3a06dec2f 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/effects/gradients",
     "//third_party/skia/src/image",
@@ -101,6 +103,7 @@ 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" ]
@@ -258,6 +261,18 @@ component("skia") {
   sources += skia_utils_sources
   sources += skia_xps_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/SkGlobalInitialization_default.cpp",
@@ -265,6 +280,7 @@ component("skia") {
     "//third_party/skia/src/ports/SkOSFile_stdio.cpp",
     "//third_party/skia/src/sfnt/SkOTTable_name.cpp",
     "//third_party/skia/src/sfnt/SkOTUtils.cpp",
+    "//third_party/skia/third_party/gif/SkGifImageReader.cpp",
   ]
 
   # This and skia_opts are really the same conceptual target so share headers.