[Extensions UI] Share more code in ExtensionInstalledBubble

chrome/browser/ui/extensions/extension_installed_bubble.h

Index: chrome/browser/ui/extensions/extension_installed_bubble.h
diff --git a/chrome/browser/ui/extensions/extension_installed_bubble.h b/chrome/browser/ui/extensions/extension_installed_bubble.h
index 08bbf95f16c76b35d7f1be17ab941df200894192..dddf22837ece8d1d0f5841b7c73069355da75a03 100644
--- a/chrome/browser/ui/extensions/extension_installed_bubble.h
+++ b/chrome/browser/ui/extensions/extension_installed_bubble.h
@@ -15,6 +15,7 @@
 class Browser;
 
 namespace extensions {
+class Command;
 class Extension;
 class ExtensionRegistry;
 }
@@ -64,10 +65,14 @@ class ExtensionInstalledBubble : public content::NotificationObserver,
   const Browser* browser() const { return browser_; }
   const SkBitmap& icon() const { return icon_; }
   BubbleType type() const { return type_; }
+  bool has_command_keybinding() const { return action_command_; }
 
   // Stop listening to NOTIFICATION_BROWSER_CLOSING.
   void IgnoreBrowserClosing();
 
+  // Returns the string describing how to use the new extension.
+  base::string16 GetHowToUseDescription() const;
+
  private:
   // Delegates showing the view to our |view_|. Called internally via PostTask.
   void ShowInternal();
@@ -95,6 +100,9 @@ class ExtensionInstalledBubble : public content::NotificationObserver,
   BubbleType type_;
   content::NotificationRegistrar registrar_;
 
+  // The command to execute the extension action, if one exists.
+  scoped_ptr<extensions::Command> action_command_;
+
   // Listen to extension load, unloaded notifications.
   ScopedObserver<extensions::ExtensionRegistry,
                  extensions::ExtensionRegistryObserver>