Bug 461199 followup: Fix build warning "ISO C++ does not support the 'z' printf length modifier". rs=sdwilsh

toolkit/components/places/tests/cpp/places_test_harness_tail.h

@@ -45,13 +45,7 @@
 #error "Must #define TEST_FILE before include places_test_harness_tail.h"
 #endif
 
-size_t gTestsIndex = 0;
-
-#ifdef XP_WIN
-#define SIZE_T "%Iu"
-#else
-#define SIZE_T "%zu"
-#endif
+int gTestsIndex = 0;
 
 #define TEST_INFO_STR "TEST-INFO | (%s) | "
 
@@ -81,7 +75,7 @@ run_next_test()
   do_check_success(NS_DispatchToCurrentThread(event));
 }
 
-size_t gPendingTests = 0;
+int gPendingTests = 0;
 
 void
 do_test_pending()
@@ -120,7 +114,7 @@ main(int aArgc,
     passed(TEST_FILE);
   }
 
-  (void)fprintf(stderr, TEST_INFO_STR SIZE_T " of " SIZE_T " tests passed\n",
+  (void)fprintf(stderr, TEST_INFO_STR  "%d of %d tests passed\n",
                 TEST_FILE, gPassedTests, gTotalTests);
 
   return gPassedTests == gTotalTests ? 0 : -1;