chrome/browser/net/connect_interceptor.h

   1 // Copyright (c) 2011 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 CHROME_BROWSER_NET_CONNECT_INTERCEPTOR_H_
   6 #define CHROME_BROWSER_NET_CONNECT_INTERCEPTOR_H_
   7
   8 #include "base/gtest_prod_util.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "chrome/browser/net/timed_cache.h"
  11
  12 class GURL;
  13
  14 namespace net {
  15 class URLRequest;
  16 }
  17
  18 namespace chrome_browser_net {
  19
  20 class Predictor;
  21
  22 //------------------------------------------------------------------------------
  23 // An interceptor to monitor URLRequests so that we can do speculative DNS
  24 // resolution and/or speculative TCP preconnections.
  25 class ConnectInterceptor {
  26  public:
  27   // Construction includes registration as an URL.
  28   explicit ConnectInterceptor(Predictor* predictor);
  29   // Destruction includes unregistering.
  30   virtual ~ConnectInterceptor();
  31
  32   // Learn about referrers, and optionally preconnect based on history.
  33   void WitnessURLRequest(net::URLRequest* request);
  34
  35  private:
  36   // Provide access to local class TimedCache for testing.
  37   FRIEND_TEST_ALL_PREFIXES(ConnectInterceptorTest, TimedCacheRecall);
  38   FRIEND_TEST_ALL_PREFIXES(ConnectInterceptorTest, TimedCacheEviction);
  39
  40   TimedCache timed_cache_;
  41   Predictor* const predictor_;
  42
  43   DISALLOW_COPY_AND_ASSIGN(ConnectInterceptor);
  44 };
  45
  46 }  // namespace chrome_browser_net
  47
  48 #endif  // CHROME_BROWSER_NET_CONNECT_INTERCEPTOR_H_