Bug 1515833 - Remove verbose nsIURIMutator warnings. r=ehsan, valentin

--HG--
extra : rebase_source : de2fecb9ddc4976085299d5abd75994c59ecc224
extra : histedit_source : 4a11cf470c2f59ada7ce7ecca4a7b9ebfbe004b4

netwerk/base/nsIURIMutator.idl

@@ -334,7 +334,7 @@ NS_MutatorMethod(Method aMethod, Args ...aArgs)
     nsCOMPtr<Interface> target = do_QueryInterface(aMutator, &rv);
     NS_ENSURE_SUCCESS(rv, rv);
     rv = (target->*aMethod)(aArgs...);
-    NS_ENSURE_SUCCESS(rv, rv);
+    if (NS_FAILED(rv)) return rv;
     return NS_OK;
   };
 }
@@ -493,7 +493,6 @@ public:
       return *this;
     }
     mStatus = aFunction(mMutator);
-    NS_ENSURE_SUCCESS(mStatus, *this);
     return *this;
   }
 
@@ -543,7 +542,7 @@ public:
 
   MOZ_MUST_USE nsresult Finalize(nsIURI** aURI)
   {
-    NS_ENSURE_SUCCESS(mStatus, mStatus);
+    if (NS_FAILED(mStatus)) return mStatus;
     mStatus = mMutator->Finalize(aURI);
     NS_ENSURE_SUCCESS(mStatus, mStatus);