Initial patch for the web modules layered platform proposal.

Source/bindings/core/core.gni

Index: Source/bindings/core/core.gni
diff --git a/Source/bindings/core/core.gni b/Source/bindings/core/core.gni
index b8f49cfd2595b1a8178ec6a26eac0ed4ba7c7417..793828865b85d50d0065c9a693c08ed79edd0593 100644
--- a/Source/bindings/core/core.gni
+++ b/Source/bindings/core/core.gni
@@ -7,6 +7,7 @@ import("//third_party/WebKit/Source/bindings/bindings.gni")
 import("//third_party/WebKit/Source/core/core.gni")
 
 bindings_core_output_dir = "$bindings_output_dir/core"
+bindings_core_web_modules_output_dir = "$bindings_core_output_dir/webmodules"
 
 # Global constructors
 core_global_constructors_original_interfaces = [
@@ -21,3 +22,8 @@ foreach (interface, core_global_constructors_original_interfaces) {
     "$blink_core_output_dir/${interface}CoreConstructors.idl"
   ]
 }
+
+# TODO(ojan): Auto-generate this list from the list of idl inputs.
+bindings_core_generated_web_modules_files = [
+  "$bindings_core_web_modules_output_dir/WebModuleNode.cpp",
+]