Fix generate_policy_source.py to honour supported_on ranges.

components/policy/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("resources/policy_templates.gni")
 import("//third_party/protobuf/proto_library.gni")
 import("//tools/grit/grit_rule.gni")
 
 if (is_component_build) {
@@ skipping 46 matching lines @@
   # policy. It is also the format currently used by the server.
   chrome_settings_proto_path = "$policy_gen_dir/chrome_settings.proto"
 
   constants_header_path = "$policy_gen_dir/policy_constants.h"
   constants_source_path = "$policy_gen_dir/policy_constants.cc"
   protobuf_decoder_path = "$policy_gen_dir/cloud_policy_generated.cc"
   app_restrictions_path = "$policy_gen_dir/app_restrictions.xml"
 
   action("cloud_policy_code_generate") {
     script = "tools/generate_policy_source.py"
+    chrome_version_abspath = "//chrome/VERSION"
+    chrome_version_path = rebase_path(chrome_version_abspath, root_build_dir)
 
     if (is_chromeos) {
       chromeos_flag = "1"
     } else {
       chromeos_flag = "0"
     }
 
     inputs = [
+      chrome_version_abspath,
       "resources/policy_templates.json",
     ]
     outputs = [
       constants_header_path,
       constants_source_path,
       protobuf_decoder_path,
       chrome_settings_proto_path,
       cloud_policy_proto_path,
       app_restrictions_path,
     ]
 
     if (target_os != "android") {
       outputs -= [ app_restrictions_path ]
     }
 
     args = [
       "--policy-constants-header=" +
           rebase_path(constants_header_path, root_build_dir),
       "--policy-constants-source=" +
           rebase_path(constants_source_path, root_build_dir),
       "--chrome-settings-protobuf=" +
           rebase_path(chrome_settings_proto_path, root_build_dir),
       "--cloud-policy-protobuf=" +
           rebase_path(cloud_policy_proto_path, root_build_dir),
       "--cloud-policy-decoder=" +
           rebase_path(protobuf_decoder_path, root_build_dir),
       "--app-restrictions-definition=" +
           rebase_path(app_restrictions_path, root_build_dir),
+      chrome_version_path,
       target_os,
       chromeos_flag,
       rebase_path("resources/policy_templates.json", root_build_dir),
     ]
   }
 
   grit("policy_templates") {
     source = "resources/policy_templates.grd"
     use_qualified_include = true
     output_dir = "$root_gen_dir/chrome"
@@ skipping 187 matching lines @@
 
       deps = [
         ":${target_name}__consolidate_resources",
         ":${target_name}__build_config",
         ":${target_name}__create_zip",
       ]
     }
   }
 }
 #TODO(GYP) chrome_manifest_bundle