Fix dependency issue in content_common (gyp)

content/content_common.gypi

 # Copyright (c) 2012 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.
 
 {
   'dependencies': [
     '../base/base.gyp:base',
     '../cc/cc.gyp:cc',
     '../cc/ipc/cc_ipc.gyp:cc_ipc',
     '../components/tracing.gyp:tracing',
@@ skipping 35 matching lines @@
     '../ui/gfx/ipc/gfx_ipc.gyp:gfx_ipc',
     '../ui/gfx/ipc/skia/gfx_ipc_skia.gyp:gfx_ipc_skia',
     '../ui/gl/gl.gyp:gl',
     '../ui/gl/init/gl_init.gyp:gl_init',
     '../ui/shell_dialogs/shell_dialogs.gyp:shell_dialogs',
     '../url/url.gyp:url_lib',
     '../url/ipc/url_ipc.gyp:url_ipc',
     'content.gyp:common_features',
     'content_common_mojo_bindings.gyp:content_common_mojo_bindings',
   ],
+  # content/public/common/common_param_traits_macros.h includes a generated
+  # header from blink.gyp:mojo_bindings. We need to be sure any targets that
+  # depend on content_common also depend upon blink.gyp:mojo_bindings so
+  # that the header is generated before compile starts.
+  'hard_dependency': '1',
   'include_dirs': [
     '..',
   ],
   'actions': [
     {
       'action_name': 'generate_webkit_version',
       'inputs': [
         '<(script)',
         '<(lastchange)',
         '<(template)',
@@ skipping 597 matching lines @@
       ],
     }],
     ['enable_ipc_fuzzer==1', {
       'sources': [
         'common/external_ipc_dumper.cc',
         'common/external_ipc_dumper.h',
       ],
     }],
   ],
 }