Extracting NetLog inner classes into their own classes.

net/base/sdch_net_log_params.h

Index: net/base/sdch_net_log_params.h
diff --git a/net/base/sdch_net_log_params.h b/net/base/sdch_net_log_params.h
index fb5461222264790e001da97baa5b629c6b422bc2..26e0e76280a8b1b7595b3a6902e9e26a40dd7408 100644
--- a/net/base/sdch_net_log_params.h
+++ b/net/base/sdch_net_log_params.h
@@ -5,16 +5,22 @@
 #ifndef NET_BASE_SDCH_NET_LOG_PARAMS_H_
 #define NET_BASE_SDCH_NET_LOG_PARAMS_H_
 
+#include <memory>
 #include <string>
 
 #include "net/base/net_export.h"
 #include "net/base/sdch_problem_codes.h"
-#include "net/log/net_log.h"
 
 class GURL;
 
+namespace base {
+class Value;
+}
+
 namespace net {
 
+class NetLogCaptureMode;
+
 NET_EXPORT std::unique_ptr<base::Value> NetLogSdchResourceProblemCallback(
     SdchProblemCode problem,
     NetLogCaptureMode capture_mode);