Add initial stub implementation of LocalActivityResolver.

components/arc/intent_helper/local_activity_resolver.cc

+// Copyright 2016 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.
+
+#include "components/arc/intent_helper/local_activity_resolver.h"
+
+#include "url/gurl.h"
+
+namespace arc {
+
+bool LocalActivityResolver::ShouldChromeHandleUrl(const GURL& url) {
+  // Stub implementation for now.
+  return false;

[elijahtaylor1, 2016/06/10 19:40:27]

maybe the default should be true?  That would allow David to use this function
when first implementing his click hooking code when checking in and would not
regress click latency.

[Yusuke Sato, 2016/06/10 19:56:09]

Ah true, good idea.

[zentaro1, 2016/06/10 20:04:26]

Done.

+}
+
+}  // namespace arc