Get rid of synchronous calls to getting plugins to help with http://codereview.chromium.org/79800...

chrome/browser/mock_plugin_exceptions_table_model.h

-// Copyright (c) 2010 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_MOCK_PLUGIN_EXCEPTIONS_TABLE_MODEL_H_
-#define CHROME_BROWSER_MOCK_PLUGIN_EXCEPTIONS_TABLE_MODEL_H_
-#pragma once
-
-#include <vector>
-
-#include "chrome/browser/plugin_exceptions_table_model.h"
-
-class MockPluginExceptionsTableModel : public PluginExceptionsTableModel {
- public:
-  MockPluginExceptionsTableModel(HostContentSettingsMap* map,
-                                 HostContentSettingsMap* otr_map);
-  virtual ~MockPluginExceptionsTableModel();
-
-  void set_plugins(std::vector<webkit::npapi::PluginGroup>& plugins);
-
- protected:
-  virtual void GetPlugins(
-      std::vector<webkit::npapi::PluginGroup>* plugin_groups);
-
- private:
-  std::vector<webkit::npapi::PluginGroup> plugins_;
-};
-
-#endif  // CHROME_BROWSER_MOCK_PLUGIN_EXCEPTIONS_TABLE_MODEL_H_