Work on blink GN bindings

Source/bindings/modules/idl.gni

+# 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/idl.gni")
+import("//third_party/WebKit/Source/modules/modules.gni")
+
+# IDL file lists; see: http://www.chromium.org/developers/web-idl-interfaces
+
+# Static IDL files
+modules_static_interface_idl_files =
+  modules_idl_files
+modules_static_dependency_idl_files =
+  modules_dependency_idl_files +
+  modules_testing_dependency_idl_files
+
+# Static IDL files / Generated IDL files
+#
+# In GYP, paths need to be passed separately for static and generated files, as
+# static files are listed in a temporary file (b/c too long for command line),
+# but generated files must be passed at the command line, as their paths are
+# not fixed at GYP time, when the temporary file is generated, because their
+# paths depend on the build directory, which varies.
+#
+# FIXME: GN does not have this limitation and we can combine the lists.
+# Currently we keep the GYP/GN builds in sync for simplicity, but this can be
+# cleaned up once GYP is not used.
+modules_static_idl_files =
+  modules_static_interface_idl_files +
+  modules_static_dependency_idl_files
+
+# 'modules_dependency_idl_files' is already used in Source/modules, so avoid
+# collision
+modules_all_dependency_idl_files =
+  modules_static_dependency_idl_files
+  #+  modules_generated_dependency_idl_files
+
+# Dependency IDL files: don't generate individual bindings, but do process
+# in IDL dependency computation, and count as build dependencies
+all_dependency_idl_files =
+  core_all_dependency_idl_files +
+  modules_all_dependency_idl_files