Work on blink GN bindings

Source/bindings/core/BUILD.gn

+# Copyright 2014 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("//third_party/WebKit/Source/bindings/core/core.gni")
+import("//third_party/WebKit/Source/bindings/core/idl.gni")
+import("//third_party/WebKit/Source/bindings/scripts/scripts.gni")
+
+# GYP version: Source/bindings/core/generated.gyp:interfaces_info_individual_core
+compute_interfaces_info_individual("interfaces_info_individual_core") {
+  sources_static = core_static_idl_files
+  sources_generated = core_generated_idl_files
+  component_dir = "core"
+  output_file =
+    "$bindings_core_output_dir/InterfacesInfoCoreIndividual.pickle"
+}