Extracting NetLog inner classes into their own classes.

net/proxy/proxy_script_decider.h

Index: net/proxy/proxy_script_decider.h
diff --git a/net/proxy/proxy_script_decider.h b/net/proxy/proxy_script_decider.h
index 31ec3ea58073e65618fa9657ee8a31a5fc66f541..7e4177b0f7396bfea07710a4be79fb5babe1a27b 100644
--- a/net/proxy/proxy_script_decider.h
+++ b/net/proxy/proxy_script_decider.h
@@ -19,14 +19,20 @@
 #include "net/base/completion_callback.h"
 #include "net/base/net_export.h"
 #include "net/dns/host_resolver.h"
-#include "net/log/net_log.h"
+#include "net/log/net_log_with_source.h"
 #include "net/proxy/proxy_config.h"
 #include "net/proxy/proxy_resolver.h"
 #include "url/gurl.h"
 
+namespace base {
+class Value;
+}
+
 namespace net {
 
 class DhcpProxyScriptFetcher;
+class NetLog;
+class NetLogCaptureMode;
 class NetLogParameter;
 class ProxyResolver;
 class ProxyScriptFetcher;