Prompt for granting permission to access USB devices.

extensions/browser/api/extensions_api_client.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 EXTENSIONS_BROWSER_API_EXTENSIONS_API_CLIENT_H_
 #define EXTENSIONS_BROWSER_API_EXTENSIONS_API_CLIENT_H_
 
 #include <map>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "extensions/browser/api/declarative_content/content_rules_registry.h"
 #include "extensions/browser/api/storage/settings_namespace.h"
 
 class GURL;
 
 template <class T>
 class ObserverListThreadSafe;
 
 namespace content {
 class BrowserContext;
+class WebContents;
 }
 
 namespace extensions {
 
 class AppViewGuestDelegate;
 class ContentRulesRegistry;
+class DevicePermissionsPrompt;
 class ExtensionOptionsGuest;
 class ExtensionOptionsGuestDelegate;
 class MimeHandlerViewGuest;
 class MimeHandlerViewGuestDelegate;
 class WebViewGuest;
 class WebViewGuestDelegate;
 class WebViewPermissionHelper;
 class WebViewPermissionHelperDelegate;
 class WebRequestEventRouterDelegate;
 class RulesCacheDelegate;
@@ skipping 58 matching lines @@
       content::BrowserContext* browser_context,
       RulesCacheDelegate* cache_delegate) const;
 
   // NOTE: If this interface gains too many methods (perhaps more than 20) it
   // should be split into one interface per API.
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_EXTENSIONS_API_CLIENT_H_