Athena: Adding basic resource management framework (un-/re-loading) of V2 applications

athena/content/public/app_content_delegate.h

+// 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 ATHENA_CONTENT_PUBLIC_APP_CONTENT_DLEGATE_H_
+#define ATHENA_CONTENT_PUBLIC_APP_CONTENT_DLEGATE_H_
+
+#include <string>
+
+#include "base/macros.h"
+
+namespace content {
+class BrowserContext;
+class WebContents;
+}
+
+namespace athena {
+
+// The application content delegate which can be overwritten for unit tests to
+// eliminate dependencies to the content / brwoser system.
+class AppContentDelegate {
+ public:
+  AppContentDelegate() {}
+  virtual ~AppContentDelegate() {}
+
+  // Unload an application. Returns true when unloaded.
+  virtual bool UnloadApplication(const std::string& app_id,
+                                 content::BrowserContext* browser_context);
+  // Restarts an application. Returns true when the restart was initiated.
+  virtual bool RestartApplication(const std::string& app_id,
+                                  content::BrowserContext* browser_context);
+  // Returns the application ID (or an empty string) for a given web content.
+  virtual std::string GetExtensionID(content::WebContents* web_contents);
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(AppContentDelegate);
+};
+
+}  // namespace athena
+
+#endif  // ATHENA_CONTENT_PUBLIC_APP_CONTENT_DLEGATE_H_