GN: fixes for the official build.

third_party/widevine/cdm/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/chrome_build.gni")
 import("//build/config/features.gni")
 import("//chrome/version.gni")  # TODO layering violation
 import("//media/cdm/ppapi/cdm_adapter.gni")
 import("//third_party/widevine/cdm/widevine.gni")
 
@@ skipping 92 matching lines @@
       # the GN build.
     }
   }
 } else {
   group("widevinecdm") {
     # NOP
   }
 }
 
 if ((is_chrome_branded || enable_widevine) && enable_pepper_cdms) {
-  adapter_resource_file = "$target_gen_dir/widevinecdmadapter_version.rc"
-
-  # Produce the .rc file.
+  # Produce and compile the .rc file.
   process_version("widevinecdmadapter_resources") {
     visibility = [ ":*" ]
     sources = [
       "BRANDING",
       "widevinecdmadapter.ver",
     ]
-    output = adapter_resource_file
+    output = "$target_gen_dir/widevinecdmadapter_version.rc"
   }
 
   cdm_adapter("widevinecdmadapter") {
-    sources = [
-      adapter_resource_file,
-    ]
     deps = [
       ":widevinecdmadapter_resources",
       ":widevinecdm",
       ":version_h",
       "//ppapi/cpp",
     ]
 
     if (is_linux) {
       ldflags =
           [ rebase_path("$root_out_dir/libwidevinecdm.so", root_build_dir) ]
@@ skipping 16 matching lines @@
 # on the license server.
 source_set("widevine_test_license_server") {
   if (is_chrome_branded && is_linux) {
     deps = [
       # TODO(jrummell)
       # This target should be removed and targets should have datadeps on this target:
       #"//third_party/widevine/test/license_server/license_server.gyp:test_license_server"
     ]
   }
 }