Add targets for generating version files in Windows GN build.

chrome/common/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("//tools/grit/grit_rule.gni")
 
 gypi_values = exec_script("//build/gypi_to_gn.py",
                           [ rebase_path("../chrome_common.gypi") ],
                           "scope",
                           [ "../chrome_common.gypi" ])
@@ skipping 248 matching lines @@
     "env_vars.cc",
     "env_vars.h",
     "net/test_server_locations.cc",
     "net/test_server_locations.h",
     "pref_font_script_names-inl.h",
     "pref_font_webkit_names.h",
     "pref_names.cc",
     "pref_names.h",
     "widevine_cdm_constants.cc",
     "widevine_cdm_constants.h",
+    "$target_gen_dir/chrome_version.cc",

[brettw, 2015/01/28 21:06:45]

A slightly more robust way of doing this is to move the process_version call
above this target, and do:
    ...(sources)...
  ] + get_target_outputs(":make_chrome_version")

[Slava Chigrin, 2015/01/29 13:13:22]

Done. Added that as separate line since in other case gn format re-formats all
sources[] list in a bit weird way.

   ]
 
   deps = [
+    ":make_chrome_version",
     "//base",
     "//base/third_party/dynamic_annotations",
     "//components/bookmarks/common",
     "//third_party/widevine/cdm:version_h",
   ]
 
   if (enable_nacl) {
     deps += [
       #'../components/nacl.gyp:nacl_switches',  TODO(GYP)
     ]
   }
 }
 
+process_version("make_chrome_version") {
+  source = "chrome_version.cc.version"
+  output = "$target_gen_dir/chrome_version.cc"
+}
+
 source_set("test_support") {
   testonly = true
   visibility = [ "//chrome/test:test_support" ]
 
   sources = []
 
   deps = [
     ":common",
     "//base",
     "//testing/gtest",
   ]
 
   if (is_win || is_mac) {
     sources += [
       "media_galleries/picasa_test_util.cc",
       "media_galleries/picasa_test_util.h",
       "media_galleries/pmp_test_util.cc",
       "media_galleries/pmp_test_util.h",
     ]
   }
 
   if (enable_extensions) {
     sources += [
       "extensions/extension_test_util.cc",
       "extensions/extension_test_util.h",
     ]
   }
 }