Turn the utility process image decoder into a Mojo service.

skia/public/BUILD.gn

Index: skia/public/BUILD.gn
diff --git a/chrome/browser/metro_utils/BUILD.gn b/skia/public/BUILD.gn
similarity index 51%
copy from chrome/browser/metro_utils/BUILD.gn
copy to skia/public/BUILD.gn
index 86a28875cc8bb6787a0807467adcbb3072e01ce0..ce407dfacf07933bb1bbf274d29a20e115be7b3d 100644
--- a/chrome/browser/metro_utils/BUILD.gn
+++ b/skia/public/BUILD.gn
@@ -2,13 +2,19 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-source_set("metro_utils") {
+source_set("public") {
+  sources = [
+    "type_converters.cc",
+    "type_converters.h",
+  ]
+
+  public_deps = [
+    "//skia/public/interfaces",
+  ]
+
   deps = [
     "//base",
-    "//chrome/installer/util",
-  ]
-  sources = [
-    "metro_chrome_win.cc",
-    "metro_chrome_win.h",
+    "//skia",
+    "//third_party/mojo/src/mojo/public/cpp/bindings",
   ]
 }