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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef COMPONENTS_CRONET_ANDROID_URL_REQUEST_CONTEXT_PEER_H_
      6 #define COMPONENTS_CRONET_ANDROID_URL_REQUEST_CONTEXT_PEER_H_
      7 
      8 #include <string>
      9 
     10 #include "base/compiler_specific.h"
     11 #include "base/macros.h"
     12 #include "base/memory/ref_counted.h"
     13 #include "base/memory/scoped_ptr.h"
     14 #include "base/threading/thread.h"
     15 #include "net/base/net_log.h"
     16 #include "net/base/network_change_notifier.h"
     17 #include "net/url_request/url_request_context.h"
     18 #include "net/url_request/url_request_context_getter.h"
     19 
     20 namespace net {
     21 class NetLogLogger;
     22 }  // namespace net
     23 
     24 namespace cronet {
     25 
     26 struct URLRequestContextConfig;
     27 
     28 // Implementation of the Chromium NetLog observer interface.
     29 class NetLogObserver : public net::NetLog::ThreadSafeObserver {
     30  public:
     31   explicit NetLogObserver(int log_level) { log_level_ = log_level; }
     32 
     33   virtual ~NetLogObserver() {}
     34 
     35   virtual void OnAddEntry(const net::NetLog::Entry& entry) OVERRIDE;
     36 
     37  private:
     38   int log_level_;
     39 
     40   DISALLOW_COPY_AND_ASSIGN(NetLogObserver);
     41 };
     42 
     43 // Fully configured |URLRequestContext|.
     44 class URLRequestContextPeer : public net::URLRequestContextGetter {
     45  public:
     46   class URLRequestContextPeerDelegate
     47       : public base::RefCountedThreadSafe<URLRequestContextPeerDelegate> {
     48    public:
     49     virtual void OnContextInitialized(URLRequestContextPeer* context) = 0;
     50 
     51    protected:
     52     friend class base::RefCountedThreadSafe<URLRequestContextPeerDelegate>;
     53 
     54     virtual ~URLRequestContextPeerDelegate() {}
     55   };
     56 
     57   URLRequestContextPeer(URLRequestContextPeerDelegate* delegate,
     58                         std::string user_agent,
     59                         int log_level,
     60                         const char* version);
     61   void Initialize(scoped_ptr<URLRequestContextConfig> config);
     62 
     63   const std::string& GetUserAgent(const GURL& url) const;
     64 
     65   int logging_level() const { return logging_level_; }
     66 
     67   const char* version() const { return version_; }
     68 
     69   // net::URLRequestContextGetter implementation:
     70   virtual net::URLRequestContext* GetURLRequestContext() OVERRIDE;
     71   virtual scoped_refptr<base::SingleThreadTaskRunner> GetNetworkTaskRunner()
     72       const OVERRIDE;
     73 
     74   void StartNetLogToFile(const std::string& file_name);
     75   void StopNetLog();
     76 
     77  private:
     78   scoped_refptr<URLRequestContextPeerDelegate> delegate_;
     79   scoped_ptr<net::URLRequestContext> context_;
     80   int logging_level_;
     81   const char* version_;
     82   std::string user_agent_;
     83   base::Thread* network_thread_;
     84   scoped_ptr<net::NetworkChangeNotifier> network_change_notifier_;
     85   scoped_ptr<NetLogObserver> net_log_observer_;
     86   scoped_ptr<net::NetLogLogger> net_log_logger_;
     87 
     88   virtual ~URLRequestContextPeer();
     89 
     90   // Initializes |context_| on the IO thread.
     91   void InitializeURLRequestContext(scoped_ptr<URLRequestContextConfig> config);
     92 
     93   DISALLOW_COPY_AND_ASSIGN(URLRequestContextPeer);
     94 };
     95 
     96 }  // namespace cronet
     97 
     98 #endif  // COMPONENTS_CRONET_ANDROID_URL_REQUEST_CONTEXT_PEER_H_
     99