Merge .in files for css/svg properties into a single file

Source/build/scripts/scripts.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/config.gni")
 
 # All paths in this file should be absolute so targets in any directory can use
 # them without worrying about the current directory.
 _scripts_dir = "//third_party/WebKit/Source/build/scripts"
 
 scripts_for_in_files = [
   # jinja2/__init__.py contains version string, so sufficient as
   # dependency for whole jinja2 package
   "//third_party/jinja2/__init__.py",
   "//third_party/markupsafe/__init__.py",  # jinja2 dep
   "$_scripts_dir/hasher.py",
   "$_scripts_dir/in_file.py",
   "$_scripts_dir/in_generator.py",
   "$_scripts_dir/license.py",
   "$_scripts_dir/name_macros.py",
   "$_scripts_dir/name_utilities.py",
   "$_scripts_dir/template_expander.py",
   "$_scripts_dir/templates/macros.tmpl",
 ]
 
+css_properties_files = scripts_for_in_files + [
+  "$_scripts_dir/css_properties.py",
+]
+
 make_event_factory_files = scripts_for_in_files + [
   "$_scripts_dir/make_event_factory.py",
   "$_scripts_dir/templates/EventFactory.cpp.tmpl",
 ]
 
 make_names_files = scripts_for_in_files + [
   "$_scripts_dir/make_names.py",
   "$_scripts_dir/templates/MakeNames.cpp.tmpl",
   "$_scripts_dir/templates/MakeNames.h.tmpl",
 ]
@@ skipping 71 matching lines @@
       "--output_dir", rebase_path(output_dir, root_build_dir),
     ]
     if (defined(invoker.other_args)) {
       args += invoker.other_args
     }
 
     deps = make_core_generated_deps
   }
 }
 
+# Template for scripts using css_properties.py. This is a special case of
+# process_in_files.
+#   outputs: expected results
+template("css_properties") {
+  process_in_files(target_name) {
+    script = invoker.script
+    in_files = ["css/CSSProperties.in"]
+    other_inputs = css_properties_files
+    if (defined(invoker.other_inputs)) {
+      other_inputs += invoker.other_inputs
+    }
+    outputs = invoker.outputs
+  }
+}
+
 # Template to run the make_names script. This is a special case of
 # process_in_files.
 #   in_files: files to pass to the script
 #   outputs: expected results
 template("make_names") {
   process_in_files(target_name) {
     script = "//third_party/WebKit/Source/build/scripts/make_names.py"
     in_files = invoker.in_files
     other_inputs = make_names_files
     outputs = invoker.outputs
@@ skipping 38 matching lines @@
 
     args = [
       rebase_path(invoker.input_file, root_build_dir),
       rebase_path(invoker.output_file, root_build_dir),
     ]
 
     deps = make_core_generated_deps
   }
 }