Invoke callback from WebstoreInstaller when installation is fully complete

chrome/browser/apps/ephemeral_app_launcher.h

 // Copyright 2013 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_APPS_EPHEMERAL_APP_LAUNCHER_H_
 #define CHROME_BROWSER_APPS_EPHEMERAL_APP_LAUNCHER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/scoped_observer.h"
 #include "chrome/browser/extensions/webstore_standalone_installer.h"
 #include "chrome/browser/ui/extensions/extension_enable_flow_delegate.h"
 #include "content/public/browser/web_contents_observer.h"
-#include "extensions/browser/extension_registry_observer.h"
 
 class ExtensionEnableFlow;
 class Profile;
 
 namespace content {
 class WebContents;
 }
 
 namespace extensions {
 class Extension;
 class ExtensionRegistry;
 }
 
 // EphemeralAppLauncher manages the launching of ephemeral apps. It handles
 // display of a prompt, initiates install of the app (if necessary) and finally
 // launches the app.
 class EphemeralAppLauncher : public extensions::WebstoreStandaloneInstaller,
                              public content::WebContentsObserver,
-                             public extensions::ExtensionRegistryObserver,
                              public ExtensionEnableFlowDelegate {
  public:
   typedef WebstoreStandaloneInstaller::Callback Callback;
 
   // Create for the app launcher.
   static scoped_refptr<EphemeralAppLauncher> CreateForLauncher(
       const std::string& webstore_item_id,
       Profile* profile,
       gfx::NativeWindow parent_window,
       const Callback& callback);
@@ skipping 12 matching lines @@
   EphemeralAppLauncher(const std::string& webstore_item_id,
                        Profile* profile,
                        gfx::NativeWindow parent_window,
                        const Callback& callback);
   EphemeralAppLauncher(const std::string& webstore_item_id,
                        content::WebContents* web_contents,
                        const Callback& callback);
 
   virtual ~EphemeralAppLauncher();
 
-  void StartObserving();
   void LaunchApp(const extensions::Extension* extension) const;
 
   // WebstoreStandaloneInstaller implementation.
   virtual bool CheckRequestorAlive() const OVERRIDE;
   virtual const GURL& GetRequestorURL() const OVERRIDE;
   virtual bool ShouldShowPostInstallUI() const OVERRIDE;
   virtual bool ShouldShowAppInstalledBubble() const OVERRIDE;
   virtual content::WebContents* GetWebContents() const OVERRIDE;
   virtual scoped_ptr<ExtensionInstallPrompt::Prompt>
       CreateInstallPrompt() const OVERRIDE;
   virtual bool CheckInlineInstallPermitted(
       const base::DictionaryValue& webstore_data,
       std::string* error) const OVERRIDE;
   virtual bool CheckRequestorPermitted(
       const base::DictionaryValue& webstore_data,
       std::string* error) const OVERRIDE;
   virtual bool CheckInstallValid(
       const base::DictionaryValue& manifest,
       std::string* error) OVERRIDE;
   virtual scoped_ptr<ExtensionInstallPrompt> CreateInstallUI() OVERRIDE;
   virtual scoped_ptr<extensions::WebstoreInstaller::Approval>
       CreateApproval() const OVERRIDE;
   virtual void CompleteInstall(const std::string& error) OVERRIDE;
 
   // content::WebContentsObserver implementation.
   virtual void WebContentsDestroyed() OVERRIDE;
 
-  // ExtensionRegistryObserver implementation.
-  virtual void OnExtensionLoaded(
-      content::BrowserContext* browser_context,
-      const extensions::Extension* extension) OVERRIDE;
-
   // ExtensionEnableFlowDelegate implementation.
   virtual void ExtensionEnableFlowFinished() OVERRIDE;
   virtual void ExtensionEnableFlowAborted(bool user_initiated) OVERRIDE;
 
-  // Listen to extension unloaded notifications.
-  ScopedObserver<extensions::ExtensionRegistry,
-                 extensions::ExtensionRegistryObserver>
-      extension_registry_observer_;
-
   gfx::NativeWindow parent_window_;
   scoped_ptr<content::WebContents> dummy_web_contents_;
 
   // Created in CheckInstallValid().
   scoped_refptr<extensions::Extension> extension_;
 
   scoped_ptr<ExtensionEnableFlow> extension_enable_flow_;
 
   DISALLOW_COPY_AND_ASSIGN(EphemeralAppLauncher);
 };
 
 #endif  // CHROME_BROWSER_APPS_EPHEMERAL_APP_LAUNCHER_H_