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 a6597a2a18a77dca56bd4358e83993f58c0df863..b9d6edb027af66247cd5d67bfd089fa205df3cc2 100644
--- a/net/http/http_stream_factory_impl_unittest.cc
+++ b/net/http/http_stream_factory_impl_unittest.cc
@@ -31,7 +31,7 @@
 #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"
@@ -66,6 +66,11 @@
 using net::test::IsError;
 using net::test::IsOk;
 
+namespace base {
+class Value;
+class DictionaryValue;
+}  // namespace base
+
 namespace net {
 
 class BidirectionalStreamImpl;