Convert CSSProperties.in to JSON5 format

third_party/WebKit/Source/devtools/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("//build/config/features.gni")
 import("//third_party/WebKit/public/public_features.gni")
 import("//third_party/WebKit/Source/core/core.gni")
 
 all_devtools_files = [
   "front_end/accessibility/AccessibilityModel.js",
@@ skipping 937 matching lines @@
   ]
 
   args = rebase_path(outputs, root_build_dir) +
          rebase_path(devtools_extension_api_files, root_build_dir)
 }
 
 action("supported_css_properties") {
   script = "scripts/build/generate_supported_css.py"
 
   inputs = [
-    "../core/css/CSSProperties.in",
+    "../core/css/CSSProperties.json5",
   ]
 
   outputs = [
     "$resources_out_dir/SupportedCSSProperties.js",
   ]
 
   args =
       rebase_path(inputs, root_build_dir) + rebase_path(outputs, root_build_dir)
 }
 
@@ skipping 112 matching lines @@
     ".eslintrc.js",
     "devtools-node-modules/",
     "front_end/",
     "scripts/buildbot/run_eslint.py",
     "scripts/local_node/",
     "//testing/scripts/common.py",
     "//testing/scripts/run_devtools_check.py",
     "//testing/xvfb.py",
   ]
 }