[ios clean] Add placeholder for NTP bookmarks, chrome home and open tabs.

ios/clean/chrome/browser/ui/open_tabs/BUILD.gn

Index: ios/clean/chrome/browser/ui/open_tabs/BUILD.gn
diff --git a/ios/clean/chrome/browser/ui/open_tabs/BUILD.gn b/ios/clean/chrome/browser/ui/open_tabs/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..e050d0fff6f19eab56f1216b15a02fa7e060303b
--- /dev/null
+++ b/ios/clean/chrome/browser/ui/open_tabs/BUILD.gn
@@ -0,0 +1,20 @@
+# 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("open_tabs") {

[lpromero, 2017/04/06 13:01:06]

Should it be "opened_tabs"?

[justincohen, 2017/04/06 18:25:11]

renamed everything to recent_tabs

+  sources = [
+    "open_tabs_coordinator.h",
+    "open_tabs_coordinator.mm",
+  ]
+
+  configs += [ "//build/config/compiler:enable_arc" ]
+
+  deps = [
+    "//ios/chrome/browser/ui:ui",
+    "//ios/chrome/browser/ui/ntp/recent_tabs:recent_tabs",
+    "//ios/shared/chrome/browser/coordinator_context",
+    "//ios/shared/chrome/browser/ui/browser_list:browser_list",
+    "//ios/shared/chrome/browser/ui/coordinators:coordinators",
+  ]
+}