Use NoImportLib: true for blacklist_test_dll_3 to avoid unnecessary rebuilding

chrome_elf/blacklist.gypi

Index: chrome_elf/blacklist.gypi
diff --git a/chrome_elf/blacklist.gypi b/chrome_elf/blacklist.gypi
index 7ab5be1aaac6addb7929b4cecb9773c5b157d032..50d1a26f6c7b602a32c1fb827347e9b0bcb02d45 100644
--- a/chrome_elf/blacklist.gypi
+++ b/chrome_elf/blacklist.gypi
@@ -60,6 +60,12 @@
       'sources': [
         'blacklist/test/blacklist_test_dll_3.cc',
       ],
+      'msvs_settings': {
+        # There's no exports in this DLL, this tells ninja not to expect an
+        # import lib so that it doesn't keep rebuilding unnecessarily due to
+        # the .lib being "missing".
+        'NoImportLibrary': 'true',
+      },
     },
   ],
 }