Declare dependency on blink_headers in targets that use blink headers

components/nacl.gyp

 # Copyright 2013 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'includes': [
     'nacl/nacl_defines.gypi',
@@ skipping 381 matching lines @@
         'nacl/common/nacl_process_type.h',
         'nacl/common/nacl_sandbox_type_mac.h',
         'nacl/common/nacl_types.cc',
         'nacl/common/nacl_types.h',
         'nacl/common/pnacl_types.cc',
         'nacl/common/pnacl_types.h',
       ],
       'include_dirs': [
         '..',
       ],
+      'dependencies': [
+        '../content/content.gyp:content_common',
+      ],
     },
   ]
 }