[MD WebUI] Polymer-CSS-Build across all bundles.

chrome/browser/resources/vulcanize.gni

Index: chrome/browser/resources/vulcanize.gni
diff --git a/chrome/browser/resources/vulcanize.gni b/chrome/browser/resources/vulcanize.gni
index bbb64101e912380e2bf59e7f9e8097cdb5741f9c..2765e85e47ee62c4cb7047ab3da3c5ef98f14dde 100644
--- a/chrome/browser/resources/vulcanize.gni
+++ b/chrome/browser/resources/vulcanize.gni
@@ -2,13 +2,12 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-template("vulcanize") {
+template("node") {
   action(target_name) {
-    script = "//chrome/browser/resources/vulcanize_gn.py"
+    forward_variables_from(invoker, "*")
 
     # Declare dependencies to all involved tools.
-    inputs = [
-      "//chrome/browser/resources/unpack_pak.py",
+    inputs += [
       "//third_party/node/node.py",
       "//third_party/node/node_modules.py",
       "//third_party/node/node_modules.tar.gz.sha1",
@@ -23,7 +22,18 @@ template("vulcanize") {
     if (is_mac) {
       inputs += [ "//third_party/node/mac/node-darwin-x64.tar.gz.sha1" ]
     }
+  }
+}
+
+template("vulcanize") {
+  node(target_name) {
+    script = "//chrome/browser/resources/vulcanize_gn.py"
+
+    inputs = [
+      "//chrome/browser/resources/unpack_pak.py",
+    ]
 
+    # This depfile is generated by vulcanize_gn.py
     depfile = "${target_gen_dir}/${target_name}.d"
 
     outputs = [
@@ -63,3 +73,28 @@ template("vulcanize") {
     }
   }
 }
+
+template("css_build") {
+  node(target_name) {
+    script = "//chrome/browser/resources/css_build_gn.py"
+
+    inputs = []
+
+    foreach(_input, invoker.input_files) {
+      inputs += [ "$target_gen_dir/$_input" ]
+    }
+
+    outputs = []
+    foreach(_output, invoker.output_files) {
+      outputs += [ "$target_gen_dir/$_output" ]
+    }
+
+    deps = invoker.deps
+
+    args = [
+             "--out_folder",
+             rebase_path(target_gen_dir, root_build_dir),
+             "--input_files",
+           ] + invoker.input_files + [ "--output_files" ] + invoker.output_files
+  }
+}