mandoline sandbox: prewarm libraries before we raise the sandbox.

mojo/runner/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("//mojo/generate_mojo_shell_assets_list.gni")
 import("//mojo/public/mojo_application.gni")
 import("//testing/test.gni")
 import("//third_party/mojo/src/mojo/public/tools/bindings/mojom.gni")
 
 # We don't support building in the component build since mojo apps are
@@ skipping 117 matching lines @@
     "//mojo/util:filename_util",
     "//third_party/mojo/src/mojo/edk/system",
     "//mojo/services/network/public/interfaces",
     "//mojo/shell",
     "//mojo/services/tracing:bindings",
     "//ui/gl",
     "//url",
   ]
 
   if (is_linux && !is_android) {
-    deps += [ "//sandbox/linux:sandbox_services" ]
+    sources += [
+      "linux_sandbox.cc",
+      "linux_sandbox.h",
+    ]
+
+    deps += [
+      "//sandbox/linux:sandbox",
+      "//sandbox/linux:sandbox_services",
+    ]
   }
 
   public_deps = [
     ":switches",
   ]
 
   data_deps = [
     "//components/devtools_service",
     "//mojo/services/tracing",
   ]
@@ skipping 317 matching lines @@
   ]
 
   deps = [
     "//base",
     "//mojo/application/public/cpp:test_support",
     "//mojo/runner/test:bindings",
     "//mojo/services/network/public/interfaces",
     "//third_party/mojo/src/mojo/public/cpp/bindings:callback",
   ]
 }