Introduce the image_decoder service

services/image_decoder/public/cpp/BUILD.gn

Index: services/image_decoder/public/cpp/BUILD.gn
diff --git a/services/image_decoder/public/cpp/BUILD.gn b/services/image_decoder/public/cpp/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..8bc897aeda810e42c06b9b3ee37154b9184a094b
--- /dev/null
+++ b/services/image_decoder/public/cpp/BUILD.gn
@@ -0,0 +1,19 @@
+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//mojo/public/tools/bindings/mojom.gni")
+
+source_set("cpp") {
+  sources = [
+    "constants.cc",
+    "constants.h",
+    "decode.cc",
+    "decode.h",
+  ]
+
+  public_deps = [
+    "//services/image_decoder/public/interfaces",
+    "//services/service_manager/public/cpp",
+  ]
+}