net: split the SSL session cache between incognito and normal.

net/socket/client_socket_factory.cc

Index: net/socket/client_socket_factory.cc
diff --git a/net/socket/client_socket_factory.cc b/net/socket/client_socket_factory.cc
index dd7746dfe661a002969de9e7abedc5bcbcdd01bc..60daef4d19fd24e096cab5024d74ff26eecb29fc 100644
--- a/net/socket/client_socket_factory.cc
+++ b/net/socket/client_socket_factory.cc
@@ -102,22 +102,8 @@ class DefaultClientSocketFactory : public ClientSocketFactory,
 #endif
   }
 
-  // TODO(rch): This is only implemented for the NSS SSL library, which is the
-  /// default for Windows, Mac and Linux, but we should implement it everywhere.
   void ClearSSLSessionCache() {
-#if defined(OS_WIN)
-    if (!g_use_system_ssl)
-      SSLClientSocketNSS::ClearSessionCache();
-#elif defined(USE_OPENSSL)
-    // no-op
-#elif defined(USE_NSS)
-    SSLClientSocketNSS::ClearSessionCache();
-#elif defined(OS_MACOSX)
-    if (!g_use_system_ssl)
-      SSLClientSocketNSS::ClearSessionCache();
-#else
-    NOTIMPLEMENTED();
-#endif
+    SSLClientSocket::ClearSessionCache();
   }
 
 };