Add unit tests for AppListServiceImpl.

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

Index: chrome/browser/ui/app_list/test/fake_keep_alive_service.h
diff --git a/chrome/browser/ui/app_list/test/fake_keep_alive_service.h b/chrome/browser/ui/app_list/test/fake_keep_alive_service.h
new file mode 100644
index 0000000000000000000000000000000000000000..9c15b5665f86e6797321eee1dae2f4f3ddbfe8fc
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+++ b/chrome/browser/ui/app_list/test/fake_keep_alive_service.h
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+// 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.
+
+#ifndef CHROME_BROWSER_UI_APP_LIST_TEST_FAKE_KEEP_ALIVE_SERVICE_H_
+#define CHROME_BROWSER_UI_APP_LIST_TEST_FAKE_KEEP_ALIVE_SERVICE_H_
+
+#include "base/compiler_specific.h"
+#include "chrome/browser/ui/app_list/keep_alive_service.h"
+
+class FakeKeepAliveService : public KeepAliveService {
+ public:
+  FakeKeepAliveService();
+
+  bool is_keeping_alive() const { return is_keeping_alive_; }
+
+  // KeepAliveService overrides.
+  virtual void EnsureKeepAlive() OVERRIDE;
+  virtual void FreeKeepAlive() OVERRIDE;
+
+ private:
+  bool is_keeping_alive_;
+};
+
+#endif  // CHROME_BROWSER_UI_APP_LIST_TEST_FAKE_KEEP_ALIVE_SERVICE_H_