Make content_shell link in the GN build.

content/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/features.gni")
 import("//build/config/ui.gni")
 import("//tools/grit/grit_rule.gni")
 import("//tools/grit/repack.gni")
 if (is_android) {
   import("//build/config/android/config.gni")
@@ skipping 128 matching lines @@
     "renderer/test_runner/WebTask.h",
     "renderer/test_runner/WebTestDelegate.h",
     "renderer/test_runner/WebTestInterfaces.cpp",
     "renderer/test_runner/WebTestInterfaces.h",
     "renderer/test_runner/accessibility_controller.cc",
     "renderer/test_runner/accessibility_controller.h",
     "renderer/test_runner/event_sender.cc",
     "renderer/test_runner/event_sender.h",
     "renderer/test_runner/gamepad_controller.cc",
     "renderer/test_runner/gamepad_controller.h",
+    "renderer/test_runner/mock_color_chooser.cc",
+    "renderer/test_runner/mock_color_chooser.h",
     "renderer/test_runner/mock_constraints.cc",
     "renderer/test_runner/mock_constraints.h",
     "renderer/test_runner/mock_grammar_check.cc",
     "renderer/test_runner/mock_grammar_check.h",
     "renderer/test_runner/mock_screen_orientation_client.cc",
     "renderer/test_runner/mock_screen_orientation_client.h",
     "renderer/test_runner/mock_spell_check.cc",
     "renderer/test_runner/mock_spell_check.h",
     "renderer/test_runner/mock_web_audio_device.cc",
     "renderer/test_runner/mock_web_audio_device.h",
@@ skipping 35 matching lines @@
 
   deps = [
     ":resources",
     "//base",
     "//base:base_static",
     "//base/allocator",
     "//base/third_party/dynamic_annotations",
     "//cc",
     "//components/breakpad/app",
     "//content:resources",
+    "//content/app:both",
     "//content/gpu",
     "//content/ppapi_plugin",
     "//content/public/browser",
     "//content/public/common",
     "//content/public/plugin",
     "//content/public/renderer",
     "//content/public/utility",
     "//content/test:layouttest_support",
     "//gin",
     "//gpu",
     "//ipc",
     "//media",
     "//net",
     "//net:net_resources",
     "//skia",
     "//third_party/icu",
     "//third_party/WebKit/public:blink",
+    "//third_party/WebKit/public:test_support",
     "//ui/base",
     "//ui/events:events_base",
     "//ui/gfx",
     "//ui/gfx/geometry",
     "//ui/gfx/ipc",
     "//ui/gl",
     "//url",
     "//v8",
     "//webkit:resources",
     "//webkit/browser:storage",
-    #'content.gyp:content_app_both',  TODO(GYP)
     #'copy_test_netscape_plugin',  TODO(GYP)
-    #'../third_party/WebKit/public/blink.gyp:blink_test_support',  TODO(GYP)
   ]
 
   if (is_win) {
     #'LinkIncremental': '<(msvs_large_module_debug_link_mode)',  TODO(GYP)
 
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
     cflags = [ "/wd4267" ]
   }
 
   if (is_linux) {
@@ skipping 165 matching lines @@
 
   if (is_android) {
     output = "$root_out_dir/content_shell/assets/content_shell.pak"
   } else {
     sources += [ "$root_gen_dir/webkit/devtools_resources.pak" ]
     deps += [ "//content/browser/devtools:resources" ]
     output = "$root_out_dir/content_shell.pak"
   }
 }
 
-if (false) {  # TODO(GYP) enable once this links.
-
 executable("content_shell") {
   # TODO(GYP) mac resource bundle stuff for this target.
   # TODO(GYP) Windows content shell settings:
   #  - Manifest.
   #  - RC file.
   #  - 'LinkIncremental': '<(msvs_large_module_debug_link_mode)',
   sources = [
     "../app/startup_helper_win.cc",
     "app/shell_main.cc",
   ]
@@ skipping 18 matching lines @@
   }
 
   if (!is_android || !is_android_webview_build) {
     # Some tests rely on this tool. It might be nicer if these tests relied on
     # image diff rather than having content shell depend on it.
     datadeps = [
       "//tools/imagediff($host_toolchain)",
     ]
   }
 }
-
-} else {
-  # Content shell not ready, make a dummpy to make dependency management easier.
-  group("content_shell") {
-  }
-}