[chrome.dial] [WIP] Adds an API to get the active network ID.

chrome/browser/extensions/api/dial/dial_api.h

 // Copyright (c) 2012 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_DIAL_DIAL_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_DIAL_DIAL_API_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "chrome/browser/extensions/api/dial/dial_device_data.h"
 #include "chrome/browser/extensions/api/dial/dial_registry.h"
+#include "chrome/browser/extensions/api/dial/discovery_network_monitor.h"
 #include "components/keyed_service/core/refcounted_keyed_service.h"
 #include "extensions/browser/api/async_api_function.h"
 #include "extensions/browser/event_router.h"
 
 namespace extensions {
 
 class DialRegistry;
 
 // Dial API which is a ref-counted KeyedService that manages
 // the DIAL registry. It takes care of creating the registry on the IO thread
@@ skipping 70 matching lines @@
   DialAPI* dial_;
 
   // Result of the discoverNow call to the DIAL registry. This result is
   // retrieved on the IO thread but the function result is returned on the UI
   // thread.
   bool result_;
 
   DISALLOW_COPY_AND_ASSIGN(DialDiscoverNowFunction);
 };
 
+class DialGetNetworkIdFunction : public AsyncApiFunction {
+ public:
+  DialGetNetworkIdFunction() = default;
+
+ protected:
+  ~DialGetNetworkIdFunction() override = default;
+
+  // AsyncApiFunction:
+  bool Prepare() override;
+  void Work() override;
+  bool Respond() override;
+
+ private:
+  DECLARE_EXTENSION_FUNCTION("dial.getNetworkId", DIAL_GETNETWORKID);
+
+  DISALLOW_COPY_AND_ASSIGN(DialGetNetworkIdFunction);
+};
+
 }  // namespace api
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_DIAL_DIAL_API_H_