Implement gallery install API

chrome/browser/extensions/extension_management_api.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_EXTENSIONS_EXTENSION_MANAGEMENT_API_H__
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_MANAGEMENT_API_H__
 #pragma once
 
 #include "base/singleton.h"
 #include "chrome/browser/extensions/extension_function.h"
@@ skipping 12 matching lines @@
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.management.getAll");
 };
 
 class SetEnabledFunction : public ExtensionManagementFunction {
   ~SetEnabledFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.management.setEnabled");
 };
 
-class InstallFunction : public ExtensionManagementFunction {
-  ~InstallFunction() {}
-  virtual bool RunImpl();
-  DECLARE_EXTENSION_FUNCTION_NAME("experimental.management.install");
-};
-
 class UninstallFunction : public ExtensionManagementFunction {
   ~UninstallFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.management.uninstall");
 };
 
 class ExtensionManagementEventRouter : public NotificationObserver {
  public:
   // Get the singleton instance of the event router.
   static ExtensionManagementEventRouter* GetInstance();
@@ skipping 11 matching lines @@
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
   NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionManagementEventRouter);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_MANAGEMENT_API_H__