Clean up a few more unused globals.

content/browser/loader/resource_dispatcher_host_impl.cc

Index: content/browser/loader/resource_dispatcher_host_impl.cc
diff --git a/content/browser/loader/resource_dispatcher_host_impl.cc b/content/browser/loader/resource_dispatcher_host_impl.cc
index 9c29a28cb911278decb182d32d28838666afcb00..8513333e03e6e609bf6bcd0eeeaee8c75cc24fe1 100644
--- a/content/browser/loader/resource_dispatcher_host_impl.cc
+++ b/content/browser/loader/resource_dispatcher_host_impl.cc
@@ -128,14 +128,6 @@ const int kUserGestureWindowMs = 3500;
 // use. Arbitrarily chosen.
 const double kMaxRequestsPerProcessRatio = 0.45;
 
-// All possible error codes from the network module. Note that the error codes
-// are all positive (since histograms expect positive sample values).
-const int kAllNetErrorCodes[] = {
-#define NET_ERROR(label, value) -(value),
-#include "net/base/net_error_list.h"
-#undef NET_ERROR
-};
-
 // Aborts a request before an URLRequest has actually been created.
 void AbortRequestBeforeItStarts(ResourceMessageFilter* filter,
                                 IPC::Message* sync_result,