diff --git a/sky/dist/BUILD.gn b/sky/dist/BUILD.gn
index 494e10ae36b..312faad9a59 100644
--- a/sky/dist/BUILD.gn
+++ b/sky/dist/BUILD.gn
@@ -26,7 +26,7 @@ copy("sky_shell") {
     ]
   } else if (is_ios || is_mac) {
     sources = [
-      "$root_build_dir/Sky.app",
+      "$root_build_dir/SkyShell.app",
     ]
 
     deps = [
diff --git a/sky/shell/BUILD.gn b/sky/shell/BUILD.gn
index 47fc1b7ed27..7ade1940be5 100644
--- a/sky/shell/BUILD.gn
+++ b/sky/shell/BUILD.gn
@@ -168,7 +168,7 @@ if (is_android) {
   import("//build/config/ios/ios_sdk.gni")
 
   ios_app("shell") {
-    app_name = "Sky"
+    app_name = "SkyShell"
     info_plist = "ios/Info.plist"
     scaffolding_target = "ios_scaffolding"
     entitlements_path = "ios/Entitlements.xcent"
@@ -232,7 +232,7 @@ if (is_android) {
   import("//build/config/mac/rules.gni")
 
   mac_app("shell") {
-    app_name = "Sky"
+    app_name = "SkyShell"
     info_plist = "mac/Info.plist"
     scaffolding_target = "mac_scaffolding"
 
diff --git a/sky/shell/mac/platform_service_provider_mac.cc b/sky/shell/mac/platform_service_provider_mac.cc
index 55b32de8035..a8cbd878b11 100644
--- a/sky/shell/mac/platform_service_provider_mac.cc
+++ b/sky/shell/mac/platform_service_provider_mac.cc
@@ -2,15 +2,16 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "sky/engine/wtf/Assertions.h"
-#include "sky/shell/service_provider.h"
-#include "base/single_thread_task_runner.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/lazy_instance.h"
 #include "base/location.h"
+#include "base/single_thread_task_runner.h"
 #include "mojo/public/cpp/application/service_provider_impl.h"
+#include "sky/engine/wtf/Assertions.h"
 #include "sky/services/ns_net/network_service_impl.h"
+#include "sky/shell/service_provider.h"
+#include "sky/shell/testing/test_runner.h"
 
 namespace sky {
 namespace shell {
@@ -26,6 +27,7 @@ static void CreatePlatformServiceProvider(
   g_service_provider.Get().reset(new mojo::ServiceProviderImpl(request.Pass()));
   g_network_service_factory.Get().reset(new mojo::NetworkServiceFactory());
   g_service_provider.Get()->AddService(g_network_service_factory.Get().get());
+  g_service_provider.Get()->AddService(&TestRunner::Shared());
 }
 
 mojo::ServiceProviderPtr CreateServiceProvider(
diff --git a/sky/tools/webkitpy/layout_tests/port/android.py b/sky/tools/webkitpy/layout_tests/port/android.py
index 64ea1b3416b..11b6281bcc1 100644
--- a/sky/tools/webkitpy/layout_tests/port/android.py
+++ b/sky/tools/webkitpy/layout_tests/port/android.py
@@ -634,9 +634,6 @@ class AndroidPort(base.Port):
     def _path_to_driver(self, configuration=None):
         return self._build_path_with_configuration(configuration, self._driver_details.apk_name())
 
-    def _path_to_helper(self):
-        return None
-
     def _path_to_image_diff(self):
         return self._host_port._path_to_image_diff()
 
diff --git a/sky/tools/webkitpy/layout_tests/port/base.py b/sky/tools/webkitpy/layout_tests/port/base.py
index f073cd20d4a..f69a357a002 100644
--- a/sky/tools/webkitpy/layout_tests/port/base.py
+++ b/sky/tools/webkitpy/layout_tests/port/base.py
@@ -326,11 +326,6 @@ class Port(object):
         else:
             _log.error('')
 
-        helper_path = self._path_to_helper()
-        if helper_path:
-            result = self._check_file_exists(helper_path,
-                                             'layout test helper') and result
-
         if self.get_option('pixel_tests'):
             result = self.check_image_diff(
                 'To override, invoke with --no-pixel-tests') and result
@@ -1407,14 +1402,6 @@ class Port(object):
         """Returns the full path to a built copy of WebCore."""
         return None
 
-    def _path_to_helper(self):
-        """Returns the full path to the layout_test_helper binary, which
-        is used to help configure the system for the test run, or None
-        if no helper is needed.
-
-        This is likely only used by start/stop_helper()."""
-        return None
-
     def _path_to_image_diff(self):
         """Returns the full path to the image_diff binary, or None if it is not available.
 
diff --git a/sky/tools/webkitpy/layout_tests/port/linux.py b/sky/tools/webkitpy/layout_tests/port/linux.py
index 1d90552f459..190f6dee3a9 100644
--- a/sky/tools/webkitpy/layout_tests/port/linux.py
+++ b/sky/tools/webkitpy/layout_tests/port/linux.py
@@ -157,6 +157,3 @@ class LinuxPort(base.Port):
     def _path_to_driver(self, configuration=None):
         binary_name = self.driver_name()
         return self._build_path_with_configuration(configuration, binary_name)
-
-    def _path_to_helper(self):
-        return None
diff --git a/sky/tools/webkitpy/layout_tests/port/mac.py b/sky/tools/webkitpy/layout_tests/port/mac.py
index 2bdd0438123..e83e25b85d3 100644
--- a/sky/tools/webkitpy/layout_tests/port/mac.py
+++ b/sky/tools/webkitpy/layout_tests/port/mac.py
@@ -91,6 +91,9 @@ class MacPort(base.Port):
     def operating_system(self):
         return 'mac'
 
+    def driver_name(self):
+        return 'SkyShell'
+
     #
     # PROTECTED METHODS
     #
@@ -108,9 +111,5 @@ class MacPort(base.Port):
         # FIXME: make |configuration| happy with case-sensitive file systems.
         return self._build_path_with_configuration(configuration, self.driver_name() + '.app', 'Contents', 'MacOS', self.driver_name())
 
-    def _path_to_helper(self):
-        binary_name = 'layout_test_helper'
-        return self._build_path(binary_name)
-
     def _path_to_wdiff(self):
-        return 'wdiff'
+        return None