Whitelist all of content for "gn check"

content/child/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/features.gni")
 import("//build/config/ui.gni")
 import("//content/child/child.gni")
 
 if (is_component_build) {
   link_target_type = "source_set"
 } else {
   link_target_type = "static_library"
 }
 target(link_target_type, "child") {
   # Targets external to content should always link to the public API.
   # Internal targets can link to this but only if they're child processes
   # (i.e. not content/browser or content/common) and only if they're inside the
   # content component (i.e. not content/test or content/shell).
   visibility = [
     ":*",
     "//content/gpu/*",
     "//content/ppapi_plugin/*",
     "//content/public/child:child_sources",
     "//content/renderer/*",
     "//content/utility/*",
     "//tools/ipc_fuzzer/*",
   ]
+  if (is_android) {
+    # See comment in content/app/BUILD.gn above content_app_deps.
+    visibility += [ "//content/app:*" ]
+  }
 
   sources = rebase_path(content_child_gypi_values.private_child_sources,
                         ".",
                         "//content")
 
   configs += [
     "//build/config:precompiled_headers",
     "//content/public/common:mojo_shell_client",
   ]
 
@@ skipping 68 matching lines @@
 
 # See comment at the top of //content/BUILD.gn for how this works.
 group("for_content_tests") {
   visibility = [ "//content/test/*" ]
   if (!is_component_build) {
     public_deps = [
       ":child",
     ]
   }
 }