Created fakes for HID-detection screen testing. Initial browsertest added.

chrome/browser/chromeos/device/input_service_proxy_factory.cc

+// Copyright 2014 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 "chrome/browser/chromeos/device/input_service_proxy_factory.h"
+
+#include "chrome/browser/chromeos/device/fake_input_service_proxy.h"
+
+namespace chromeos {
+
+// static
+InputServiceProxy* InputServiceProxyFactory::GetProxy() {
+  if (in_fake_mode_)
+    return static_cast<InputServiceProxy*>(new FakeInputServiceProxy);

[Nikita (slow), 2015/02/11 14:53:07]

drop static_cast<>

[merkulova, 2015/02/13 10:00:04]

Done.

+  return new InputServiceProxy();
+}
+
+// static
+bool InputServiceProxyFactory::in_fake_mode_ = false;

[Nikita (slow), 2015/02/11 14:53:07]

nit: use_fake_instance_

[merkulova, 2015/02/13 10:00:04]

Done.

+
+// static
+void InputServiceProxyFactory::SetFakeForTesting(bool to_fake) {

[Nikita (slow), 2015/02/11 14:53:07]

nit: bool use_fake_instance

[merkulova, 2015/02/13 10:00:04]

Done.

+  in_fake_mode_ = to_fake;
+}
+
+// static
+bool InputServiceProxyFactory::IsFakeSetForTesting() {
+  return in_fake_mode_;
+}
+
+}  // namespace chromeos