Declare dependency on blink_headers in targets that use blink headers

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',
     '../components/tracing.gyp:tracing',
     '../net/net.gyp:net',
     '../skia/skia.gyp:skia',
+    '../third_party/WebKit/public/blink_headers.gyp:blink_headers',
     '../third_party/icu/icu.gyp:icuuc',
     '../third_party/libjingle/libjingle.gyp:libjingle',
     '../ui/accessibility/accessibility.gyp:accessibility',
     '../ui/base/ui_base.gyp:ui_base',
     '../ui/gfx/gfx.gyp:gfx',
     '../ui/gfx/gfx.gyp:gfx_geometry',
     '../ui/shell_dialogs/shell_dialogs.gyp:shell_dialogs',
     '../url/url.gyp:url_lib',
   ],
   'include_dirs': [
     '..',
   ],
   'export_dependent_settings': [
     '../base/base.gyp:base',
+    # The public content API headers directly include Blink API headers, so we
+    # have to export the blink header settings so that relative paths in these
+    # headers resolve correctly.
+    '../third_party/WebKit/public/blink_headers.gyp:blink_headers',
   ],
   'sources': [
     'public/common/assert_matching_enums.cc',
     'public/common/bindings_policy.h',
     'public/common/child_process_host.h',
     'public/common/child_process_host_delegate.cc',
     'public/common/child_process_host_delegate.h',
     'public/common/child_process_sandbox_support_linux.h',
     'public/common/color_suggestion.cc',
     'public/common/color_suggestion.h',
@@ skipping 670 matching lines @@
         'common/sandbox_linux/bpf_renderer_policy_linux.cc',
         'common/sandbox_linux/bpf_renderer_policy_linux.h',
         'common/sandbox_linux/sandbox_bpf_base_policy_linux.cc',
         'common/sandbox_linux/sandbox_bpf_base_policy_linux.h',
       ],
     }, {
       'defines': ['USE_SECCOMP_BPF'],
     }],
   ],
 }