Add a landmine for crbug.com/408192

TBR=jam@chromium.org

Review URL: https://codereview.chromium.org/529183004

Cr-Commit-Position: refs/heads/master@{#293024}

build/get_landmines.py

@@ -55,6 +55,7 @@ def print_landmines():
   print 'Need to clobber everything due to build_nexe change in nacl r13424'
   print '[chromium-dev] PSA: clobber build needed for IDR_INSPECTOR_* compil...'
   print 'blink_resources.grd changed: crbug.com/400860'
+  print 'ninja dependency cycle: crbug.com/408192'
 
 
 def main():