Extracting NetLog inner classes into their own classes.

net/http/http_stream_factory_impl_unittest.cc

Index: net/http/http_stream_factory_impl_unittest.cc
diff --git a/net/http/http_stream_factory_impl_unittest.cc b/net/http/http_stream_factory_impl_unittest.cc
index 151677d777bcd02a222aadd59c7e31990580b322..70ad1eb4cdb3175f48e7ac10da1b915ade194f0c 100644
--- a/net/http/http_stream_factory_impl_unittest.cc
+++ b/net/http/http_stream_factory_impl_unittest.cc
@@ -30,7 +30,7 @@
 #include "net/http/http_server_properties_impl.h"
 #include "net/http/http_stream.h"
 #include "net/http/transport_security_state.h"
-#include "net/log/net_log.h"
+#include "net/log/net_log_with_source.h"
 #include "net/proxy/proxy_info.h"
 #include "net/proxy/proxy_service.h"
 #include "net/quic/core/quic_http_utils.h"
@@ -65,6 +65,11 @@
 using net::test::IsError;
 using net::test::IsOk;
 
+namespace base {
+class Value;
+class DictionaryValue;
+}  // namespace base
+
 namespace net {
 
 class BidirectionalStreamImpl;