[chrome.displaySource] Switch mojom targets to use STL types.

extensions/renderer/api/display_source/wifi_display/wifi_display_session.h

 // Copyright 2015 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_RENDERER_API_DISPLAY_SOURCE_WIFI_DISPLAY_WIFI_DISPLAY_SESSION_H_
 #define EXTENSIONS_RENDERER_API_DISPLAY_SOURCE_WIFI_DISPLAY_WIFI_DISPLAY_SESSION_H_
 
 #include <map>
 #include <string>
 
@@ skipping 22 matching lines @@
       const DisplaySourceSessionParams& params);
   ~WiFiDisplaySession() override;
 
  private:
   using DisplaySourceSession::CompletionCallback;
   // DisplaySourceSession overrides.
   void Start(const CompletionCallback& callback) override;
   void Terminate(const CompletionCallback& callback) override;
 
   // WiFiDisplaySessionServiceClient overrides.
-  void OnConnected(const mojo::String& local_ip_address,
-                   const mojo::String& sink_ip_address) override;
-  void OnConnectRequestHandled(bool success,
-                               const mojo::String& error) override;
+  void OnConnected(const std::string& local_ip_address,
+                   const std::string& sink_ip_address) override;
+  void OnConnectRequestHandled(bool success, const std::string& error) override;
   void OnTerminated() override;
   void OnDisconnectRequestHandled(bool success,
-                                  const mojo::String& error) override;
-  void OnError(int32_t type, const mojo::String& description) override;
-  void OnMessage(const mojo::String& data) override;
+                                  const std::string& error) override;
+  void OnError(int32_t type, const std::string& description) override;
+  void OnMessage(const std::string& data) override;
 
   // wds::Peer::Delegate overrides.
   unsigned CreateTimer(int seconds) override;
   void ReleaseTimer(unsigned timer_id) override;
   void SendRTSPData(const std::string& message) override;
   std::string GetLocalIPAddress() const override;
   int GetNextCSeq(int* initial_peer_cseq = nullptr) const override;
 
   // wds::Peer::Observer overrides.
   void ErrorOccurred(wds::ErrorType error) override;
@@ skipping 25 matching lines @@
   mutable int cseq_;
   int timer_id_;
   base::WeakPtrFactory<WiFiDisplaySession> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WiFiDisplaySession);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_RENDERER_API_DISPLAY_SOURCE_WIFI_DISPLAY_WIFI_DISPLAY_SESSION_H_