Add unit tests for AppListServiceImpl.

chrome/browser/ui/app_list/test/fake_keep_alive_service.cc

Index: chrome/browser/ui/app_list/test/fake_keep_alive_service.cc
diff --git a/chrome/browser/ui/app_list/test/fake_keep_alive_service.cc b/chrome/browser/ui/app_list/test/fake_keep_alive_service.cc
new file mode 100644
index 0000000000000000000000000000000000000000..3f57d6a2bab8b0aedc855d327753109c8d21e51d
--- /dev/null
+++ b/chrome/browser/ui/app_list/test/fake_keep_alive_service.cc
@@ -0,0 +1,17 @@
+// Copyright 2013 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/ui/app_list/test/fake_keep_alive_service.h"
+
+FakeKeepAliveService::FakeKeepAliveService()
+  : is_keeping_alive_(false) {
+}
+
+void FakeKeepAliveService::EnsureKeepAlive() {
+  is_keeping_alive_ = true;
+}
+
+void FakeKeepAliveService::FreeKeepAlive() {
+  is_keeping_alive_ = false;
+}