Bug 1847402 - Remove some unused code: NS_N(), MAX_RECURSION_COUNT, a…

…nd AutoIncrement. r=necko-reviewers,jesup

NS_N() was added in bug 49786 in 2001 (!!). MAX_RECURSION_COUNT and AutoIncrement were added in bug 371473 in 2007.

Differential Revision: https://phabricator.services.mozilla.com/D185508

netwerk/base/nsIOService.cpp

@@ -88,8 +88,6 @@ using mozilla::dom::ServiceWorkerDescriptor;
 #define NETWORK_DNS_PREF "network.dns."
 #define FORCE_EXTERNAL_PREF_PREFIX "network.protocol-handler.external."
 
-#define MAX_RECURSION_COUNT 50
-
 nsIOService* gIOService;
 static bool gHasWarnedUploadChannel2;
 static bool gCaptivePortalEnabled = false;
@@ -988,15 +986,6 @@ nsIOService::GetDefaultPort(const char* scheme, int32_t* defaultPort) {
   return NS_OK;
 }
 
-class AutoIncrement {
- public:
-  explicit AutoIncrement(uint32_t* var) : mVar(var) { ++*var; }
-  ~AutoIncrement() { --*mVar; }
-
- private:
-  uint32_t* mVar;
-};
-
 nsresult nsIOService::NewURI(const nsACString& aSpec, const char* aCharset,
                              nsIURI* aBaseURI, nsIURI** result) {
   return NS_NewURI(result, aSpec, aCharset, aBaseURI);

netwerk/base/nsIOService.h

@@ -28,8 +28,6 @@
 #include "nsWeakReference.h"
 #include "nsNetCID.h"
 
-#define NS_N(x) (sizeof(x) / sizeof(*(x)))
-
 // We don't want to expose this observer topic.
 // Intended internal use only for remoting offline/inline events.
 // See Bug 552829