Adds a common way to initialize logging

components/html_viewer/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/module_args/v8.gni")
 import("//mojo/public/mojo_application.gni")
 import("//testing/test.gni")
 import("//tools/grit/grit_rule.gni")
 import("//tools/grit/repack.gni")
 
@@ skipping 145 matching lines @@
     "//gin",
     "//mandoline/tab/public/interfaces",
     "//media",
     "//media/blink",
     "//media/mojo",
     "//mojo/application/public/cpp",
     "//mojo/application/public/interfaces",
     "//mojo/cc",
     "//mojo/common",
     "//mojo/converters/surfaces",
+    "//mojo/logging",
     "//mojo/message_pump",
     "//mojo/platform_handle",
     "//mojo/services/network/public/cpp",
     "//mojo/services/network/public/interfaces",
     "//mojo/services/tracing/public/cpp",
     "//mojo/services/tracing/public/interfaces",
     "//net",
     "//skia",
     "//third_party/mojo_services/src/accessibility/public/interfaces",
     "//third_party/WebKit/public:image_resources",
@@ skipping 169 matching lines @@
 
   data_deps = [
     ":html_viewer",
     "//components/view_manager",
   ]
 
   if (is_linux && !is_android) {
     data_deps += [ "//components/font_service" ]
   }
 }