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chrome/browser/plugin_installer_observer.h

+// Copyright (c) 2011 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_PLUGIN_INSTALLER_OBSERVER_H_
+#define CHROME_BROWSER_PLUGIN_INSTALLER_OBSERVER_H_
+#pragma once
+
+class PluginInstaller;
+
+class PluginInstallerObserver {
+ public:
+  explicit PluginInstallerObserver(PluginInstaller* installer);
+  virtual ~PluginInstallerObserver();
+
+ protected:
+  PluginInstaller* installer() { return installer_; }
+
+ private:
+  friend class PluginInstaller;
+
+  virtual void DidStartDownload();
+  virtual void DidFinishDownload();
+  virtual void DidFinishInstallation();
+
+  // Weak pointer; Owned by PluginFinder, which is a singleton.
+  PluginInstaller* installer_;
+};
+
+#endif  // CHROME_BROWSER_PLUGIN_INSTALLER_OBSERVER_H_