Re-submit of https://codereview.chromium.org/356613002

chrome/browser/extensions/api/gcd_private/gcd_private_api.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 CHROME_BROWSER_EXTENSIONS_API_GCD_PRIVATE_GCD_PRIVATE_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_GCD_PRIVATE_GCD_PRIVATE_API_H_
 
 #include "base/memory/linked_ptr.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/extensions/chrome_extension_function.h"
@@ skipping 19 matching lines @@
   };
 
   explicit GcdPrivateAPI(content::BrowserContext* context);
   virtual ~GcdPrivateAPI();
 
   static void SetGCDApiFlowFactoryForTests(GCDApiFlowFactoryForTests* factory);
 
   // BrowserContextKeyedAPI implementation.
   static BrowserContextKeyedAPIFactory<GcdPrivateAPI>* GetFactoryInstance();
 
+  bool QueryForDevices();
+
  private:
   friend class BrowserContextKeyedAPIFactory<GcdPrivateAPI>;
 
   typedef std::map<std::string /* id_string */,
                    linked_ptr<api::gcd_private::GCDDevice> > GCDDeviceMap;
 
   // EventRouter::Observer implementation.
   virtual void OnListenerAdded(const EventListenerInfo& details) OVERRIDE;
   virtual void OnListenerRemoved(const EventListenerInfo& details) OVERRIDE;
 
@@ skipping 216 matching lines @@
 
   // AsyncExtensionFunction overrides.
   virtual bool RunAsync() OVERRIDE;
 
  private:
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_GCD_PRIVATE_GCD_PRIVATE_API_H_