Make mojo_shell depend on NSS on Linux.

shell/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("//mojo/public/mojo.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
 import("//testing/test.gni")
 
 # We don't support building in the component build since mojo apps are
@@ skipping 60 matching lines @@
       # It means dynamic symbols must be preserved and exported.
       ldflags = [ "-Wl,--export-dynamic" ]
 
       deps += [
         ":jni_headers",
         "//services/native_viewport:lib",
         "//shell/application_manager",
         "//ui/gl",
       ]
     }
+
+    if (is_linux) {
+      public_configs = [ "//third_party/nss:system_nss_no_ssl_config" ]
+    }
   }
 }  # !use_prebuilt_mojo_shell
 
 executable("mojo_launcher") {
   sources = [
     "launcher_main.cc",
   ]
 
   deps = [
     ":external_application_registrar_bindings",
@@ skipping 407 matching lines @@
 
     deps -= [
       ":lib",
       ":external_application_registrar_connection",
       ":external_application_registrar_bindings",
       "//shell/domain_socket",
       "//shell/domain_socket:tests",
     ]
   }
 }