Update Skia build file for Skia build change

Bug: skia:9756

https://skia-review.googlesource.com/c/skia/+/273768 splits
SK_HAS_***_LIBRARY into separate defines for encoding and decoding.
Split them up here, too. The old defines can be removed once the Skia CL
lands.

No behavior change.

Change-Id: Iabf5a1e7692fa5077ddd06a28bdc442f463e021e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2078745Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Leon Scroggins <scroggo@google.com>
Cr-Commit-Position: refs/heads/master@{#745533}

skia/BUILD.gn

@@ -57,6 +57,13 @@ config("skia_config") {
   }
 
   defines = [
+    "SK_CODEC_DECODES_PNG",
+    "SK_CODEC_DECODES_WEBP",
+    "SK_ENCODE_PNG",
+    "SK_ENCODE_WEBP",
+
+    # TODO (scroggo): skbug.com/9756 Once https://skia-review.googlesource.com/c/skia/+/273768
+    # lands, these can be removed.
     "SK_HAS_PNG_LIBRARY",
     "SK_HAS_WEBP_LIBRARY",
     "SK_USER_CONFIG_HEADER=\"../../skia/config/SkUserConfig.h\"",
@@ -67,7 +74,14 @@ config("skia_config") {
   }
 
   if (!is_ios) {
-    defines += [ "SK_HAS_JPEG_LIBRARY" ]
+    defines += [
+      "SK_CODEC_DECODES_JPEG",
+      "SK_ENCODE_JPEG",
+
+      # TODO (scroggo): skbug.com/9756 Once https://skia-review.googlesource.com/c/skia/+/273768
+      # lands, this can be removed.
+      "SK_HAS_JPEG_LIBRARY",
+    ]
     if (enable_skia_wuffs_gif) {
       defines += [ "SK_HAS_WUFFS_LIBRARY" ]
     } else {