1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_EXTENSIONS_API_API_RESOURCE_H_ 6 #define CHROME_BROWSER_EXTENSIONS_API_API_RESOURCE_H_ 7 8 #include "base/basictypes.h" 9 #include "base/memory/ref_counted.h" 10 #include "content/public/browser/browser_thread.h" 11 #include "extensions/common/extension.h" 12 13 namespace extensions { 14 15 // An ApiResource represents something that an extension API manages, such as a 16 // socket or a serial-port connection. Typically, an ApiResourceManager will 17 // control the lifetime of all ApiResources of a specific derived type. 18 class ApiResource { 19 public: 20 virtual ~ApiResource(); 21 22 const std::string& owner_extension_id() const { 23 return owner_extension_id_; 24 } 25 26 // If this method returns |true|, the resource remains open when the 27 // owning extension is suspended due to inactivity. 28 virtual bool IsPersistent() const; 29 30 static const content::BrowserThread::ID kThreadId = 31 content::BrowserThread::IO; 32 33 protected: 34 explicit ApiResource(const std::string& owner_extension_id); 35 36 private: 37 // The extension that owns this resource. 38 const std::string owner_extension_id_; 39 40 DISALLOW_COPY_AND_ASSIGN(ApiResource); 41 }; 42 43 } // namespace extensions 44 45 #endif // CHROME_BROWSER_EXTENSIONS_API_API_RESOURCE_H_ 46
