[ios showcase]Configures Resource Bundle and adds Toolbar Coordinator

ios/showcase/toolbar/BUILD.gn

Index: ios/showcase/toolbar/BUILD.gn
diff --git a/ios/showcase/settings/BUILD.gn b/ios/showcase/toolbar/BUILD.gn
similarity index 55%
copy from ios/showcase/settings/BUILD.gn
copy to ios/showcase/toolbar/BUILD.gn
index 6810351c11cd6154d6b300d50c5421108f216e5e..c9bd5eb413002d59457dab4b3df39fae7911b11c 100644
--- a/ios/showcase/settings/BUILD.gn
+++ b/ios/showcase/toolbar/BUILD.gn
@@ -1,14 +1,14 @@
-# Copyright 2016 The Chromium Authors. All rights reserved.
+# Copyright 2017 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.
 
-source_set("settings") {
+source_set("toolbar") {
   sources = [
-    "settings_coordinator.h",
-    "settings_coordinator.mm",
+    "sc_toolbar_coordinator.h",
+    "sc_toolbar_coordinator.mm",
   ]
   deps = [
-    "//base",
+    "//ios/clean/chrome/browser/ui/toolbar:toolbar_ui",
     "//ios/showcase/common",
   ]
   libs = [ "UIKit.framework" ]