Revert of Fix the handling of user gestures for external protocol handler dialogs.

extensions/browser/extensions_browser_client.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 EXTENSIONS_BROWSER_EXTENSIONS_BROWSER_CLIENT_H_
 #define EXTENSIONS_BROWSER_EXTENSIONS_BROWSER_CLIENT_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 88 matching lines @@
 
   // Creates a new ExtensionHostDelegate instance.
   virtual scoped_ptr<ExtensionHostDelegate> CreateExtensionHostDelegate() = 0;
 
   // Returns true if the client version has updated since the last run. Called
   // once each time the extensions system is loaded per browser_context. The
   // implementation may wish to use the BrowserContext to record the current
   // version for later comparison.
   virtual bool DidVersionUpdate(content::BrowserContext* context) = 0;
 
+  // Permits an external protocol handler to be launched. See
+  // ExternalProtocolHandler::PermitLaunchUrl() in Chrome.
+  virtual void PermitExternalProtocolHandler() = 0;
+
   // Creates a new AppSorting instance.
   virtual scoped_ptr<AppSorting> CreateAppSorting() = 0;
 
   // Return true if the system is run in forced app mode.
   virtual bool IsRunningInForcedAppMode() = 0;
 
   // Returns the embedder's ApiActivityMonitor for |context|. Returns NULL if
   // the embedder does not monitor extension API activity.
   virtual ApiActivityMonitor* GetApiActivityMonitor(
       content::BrowserContext* context) = 0;
 
   // Returns the factory that provides an ExtensionSystem to be returned from
   // ExtensionSystem::Get.
   virtual ExtensionSystemProvider* GetExtensionSystemFactory() = 0;
 
   // Registers extension functions not belonging to the core extensions APIs.
   virtual void RegisterExtensionFunctions(
       ExtensionFunctionRegistry* registry) const = 0;
 
   // Returns the single instance of |this|.
   static ExtensionsBrowserClient* Get();
 
   // Initialize the single instance.
   static void Set(ExtensionsBrowserClient* client);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_EXTENSIONS_BROWSER_CLIENT_H_