Roll Skia

https://skia.googlesource.com/skia.git/+log/7e2c9f54c0f..a13d52c7aaa

update moved files (src/images -> src/encode) using gni file lists
from https://skia-review.googlesource.com/c/skia/+/645296

Change-Id: Ib88260cd7263c3bc36300e779e9b55c3020f00af
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/104230
Commit-Queue: Nigi <nigi@chromium.org>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Nigi <nigi@chromium.org>
Auto-Submit: Kevin Lubick <kjlubick@google.com>
diff --git a/DEPS b/DEPS
index 91ba596..0a6f37e 100644
--- a/DEPS
+++ b/DEPS
@@ -148,7 +148,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling skia
   # and whatever else without interference from each other.
-  'skia_revision': '7e2c9f54c0fd5d777f96e94b958c2ebff5fa246b',
+  'skia_revision': 'a13d52c7aaa842ddc9cea34f779561152bbeff78',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling test_fonts
   # and whatever else without interference from each other.
diff --git a/skia/BUILD.gn b/skia/BUILD.gn
index 6785ff5..9d66524 100644
--- a/skia/BUILD.gn
+++ b/skia/BUILD.gn
@@ -176,11 +176,11 @@
   sources += skia_utils_sources
   sources += skia_codec_core
   sources += skia_codec_decode_bmp
+  sources += skia_encode_srcs
+  sources += skia_encode_png_srcs
   sources += [
     "//third_party/skia/src/fonts/SkFontMgr_indirect.cpp",
     "//third_party/skia/src/fonts/SkRemotableFontMgr.cpp",
-    "//third_party/skia/src/images/SkImageEncoder.cpp",
-    "//third_party/skia/src/images/SkPngEncoder.cpp",
     "//third_party/skia/src/ports/SkGlobalInitialization_default.cpp",
     "//third_party/skia/src/ports/SkImageGenerator_none.cpp",
     "//third_party/skia/src/ports/SkOSFile_stdio.cpp",