[ios clean] Creates ToolsMenu UnitTests

ios/clean/chrome/browser/ui/tools/tools_coordinator_unittest.mm

Index: ios/clean/chrome/browser/ui/tools/tools_coordinator_unittest.mm
diff --git a/ios/clean/chrome/browser/ui/tools/tools_coordinator_unittest.mm b/ios/clean/chrome/browser/ui/tools/tools_coordinator_unittest.mm
new file mode 100644
index 0000000000000000000000000000000000000000..6c0d1a29000fd2a62c2a53f98b4db3bef552f4ae
--- /dev/null
+++ b/ios/clean/chrome/browser/ui/tools/tools_coordinator_unittest.mm
@@ -0,0 +1,9 @@
+// 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.
+
+#import "ios/clean/chrome/browser/ui/tools/tools_coordinator.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif

[lpromero, 2017/04/12 13:44:39]

Anything you could test here? Maybe that the view controller and mediators are
properly created, and that the view controller is the consumer of the mediator?

[sczs, 2017/04/12 20:10:11]

Great idea! I was trying to do that but I need to Fake the dispatcher and
Browser class in order to get the Coordinator started. 
Will leave that to a future CL since everyone lgtm'ed this already.