GN: Fix some breakage for os==chromeos build

content/gpu/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/ui.gni")
 import("//content/content.gni")
 
 source_set("gpu") {
   # TODO(brettw) it seems like this should be only visible to content like
   # the other non-public content directories are. But this is depended on by
@@ skipping 27 matching lines @@
       "//third_party/wtl:wtl_includes",
     ]
     libs = [ "setupapi.lib" ]
     deps += [
       "//third_party/angle:libEGL",
       "//third_party/angle:libGLESv2",
     ]
   }
 
   if (is_chromeos && cpu_arch != "arm") {
-    configs += [ "//third_party/libva/libva_config" ]
+    configs += [ "//third_party/libva:libva_config" ]
   }
 
   if (use_x11) {
     deps += [ "//ui/events/platform/x11" ]
   }
 }