headless: Add devtools discovery page

headless/BUILD.gn

 # Copyright 2015 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("//testing/test.gni")
+import("//tools/grit/grit_rule.gni")
 import("//tools/grit/repack.gni")
 
 group("headless") {
   deps = [
     "//headless:headless_lib",
   ]
 }
 
 repack("pak") {
   sources = [
     "$root_gen_dir/blink/devtools_resources.pak",
     "$root_gen_dir/blink/public/resources/blink_image_resources_100_percent.pak",
     "$root_gen_dir/blink/public/resources/blink_resources.pak",
     "$root_gen_dir/content/app/resources/content_resources_100_percent.pak",
     "$root_gen_dir/content/app/strings/content_strings_en-US.pak",
     "$root_gen_dir/content/browser/tracing/tracing_resources.pak",
     "$root_gen_dir/content/content_resources.pak",
+    "$root_gen_dir/headless/headless_lib_resources.pak",
     "$root_gen_dir/net/net_resources.pak",
     "$root_gen_dir/ui/resources/ui_resources_100_percent.pak",
     "$root_gen_dir/ui/resources/webui_resources.pak",
     "$root_gen_dir/ui/strings/app_locale_settings_en-US.pak",
     "$root_gen_dir/ui/strings/ui_strings_en-US.pak",
   ]
 
   deps = [
+    ":headless_lib_resources_grit",
     "//content:resources",
     "//content/app/resources",
     "//content/app/strings",
     "//content/browser/devtools:resources",
     "//content/browser/tracing:resources",
     "//net:net_resources",
     "//third_party/WebKit/public:image_resources",
     "//third_party/WebKit/public:resources",
     "//ui/resources",
     "//ui/strings",
   ]
 
   output = "$root_out_dir/headless_lib.pak"
 }
 
+grit("headless_lib_resources_grit") {
+  source = "lib/resources/headless_lib_resources.grd"
+  outputs = [
+    "grit/headless_lib_resources.h",
+    "$root_gen_dir/headless/headless_lib_resources.pak",
+  ]
+}
+
 static_library("headless_lib") {
   sources = [
     "lib/browser/headless_browser_context.cc",
     "lib/browser/headless_browser_context.h",
     "lib/browser/headless_browser_impl.cc",
     "lib/browser/headless_browser_impl.h",
     "lib/browser/headless_browser_main_parts.cc",
     "lib/browser/headless_browser_main_parts.h",
     "lib/browser/headless_content_browser_client.cc",
     "lib/browser/headless_content_browser_client.h",
@@ skipping 69 matching lines @@
   testonly = true
 
   sources = [
     "app/headless_shell.cc",
   ]
 
   deps = [
     "//headless:headless_lib",
   ]
 }