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

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

Index: ios/clean/chrome/browser/ui/recent_tabs/BUILD.gn
diff --git a/ios/clean/chrome/browser/ui/ntp/BUILD.gn b/ios/clean/chrome/browser/ui/recent_tabs/BUILD.gn
similarity index 51%
copy from ios/clean/chrome/browser/ui/ntp/BUILD.gn
copy to ios/clean/chrome/browser/ui/recent_tabs/BUILD.gn
index 363e9659226490453ab39cdc4f3e06ad49bac1d9..f4c8ec7ff416d00243f332039e8bdfe6c1d25c3e 100644
--- a/ios/clean/chrome/browser/ui/ntp/BUILD.gn
+++ b/ios/clean/chrome/browser/ui/recent_tabs/BUILD.gn
@@ -2,35 +2,32 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-source_set("ntp") {
+source_set("recent_tabs") {
   sources = [
-    "new_tab_page_coordinator.h",
-    "new_tab_page_coordinator.mm",
+    "recent_tabs_coordinator.h",
+    "recent_tabs_coordinator.mm",
   ]
 
   configs += [ "//build/config/compiler:enable_arc" ]
 
   deps = [
-    ":ntp_ui",
+    "//ios/chrome/browser/ui",
+    "//ios/chrome/browser/ui/ntp/recent_tabs",
     "//ios/shared/chrome/browser/coordinator_context",
+    "//ios/shared/chrome/browser/ui/browser_list",
     "//ios/shared/chrome/browser/ui/coordinators",
   ]
 }
 
-source_set("ntp_ui") {
+source_set("unit_tests") {
+  testonly = true
   sources = [
-    "new_tab_page_view_controller.h",
-    "new_tab_page_view_controller.mm",
+    "recent_tabs_coordinator_unittest.mm",
   ]
 
-  configs += [ "//build/config/compiler:enable_arc" ]
-
   deps = [
-    "//base",
-    "//components/strings:components_strings_grit",
-    "//ios/chrome/app/strings:ios_strings_grit",
-    "//ios/chrome/browser/ui/ntp:ntp_internal",
-    "//ios/clean/chrome/browser/ui",
-    "//ui/base:base",
+    ":recent_tabs",
+    "//testing/gtest",
   ]
+  configs += [ "//build/config/compiler:enable_arc" ]
 }