1 files changed, 43 insertions, 0 deletions
diff --git a/chromium/extensions/browser/api/api_resource.h b/chromium/extensions/browser/api/api_resource.h
new file mode 100644
index 00000000000..f068103415e
--- /dev/null
+++ b/chromium/extensions/browser/api/api_resource.h
@@ -0,0 +1,43 @@
+// Copyright 2014 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 EXTENSIONS_BROWSER_API_API_RESOURCE_H_
+#define EXTENSIONS_BROWSER_API_API_RESOURCE_H_
+
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "content/public/browser/browser_thread.h"
+#include "extensions/common/extension.h"
+
+namespace extensions {
+
+// An ApiResource represents something that an extension API manages, such as a
+// socket or a serial-port connection. Typically, an ApiResourceManager will
+// control the lifetime of all ApiResources of a specific derived type.
+class ApiResource {
+ public:
+  virtual ~ApiResource();
+
+  const std::string& owner_extension_id() const { return owner_extension_id_; }
+
+  // If this method returns |true|, the resource remains open when the
+  // owning extension is suspended due to inactivity.
+  virtual bool IsPersistent() const;
+
+  static const content::BrowserThread::ID kThreadId =
+      content::BrowserThread::IO;
+
+ protected:
+  explicit ApiResource(const std::string& owner_extension_id);
+
+ private:
+  // The extension that owns this resource.
+  const std::string owner_extension_id_;
+
+  DISALLOW_COPY_AND_ASSIGN(ApiResource);
+};
+
+}  // namespace extensions
+
+#endif  // EXTENSIONS_BROWSER_API_API_RESOURCE_H_