Mass rebaseline of the rrect_* GMs

expectations/gm/Test-Win7-ShuttleA-HD2000-x86-Release-DirectWrite/expected-results.json

 {
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@@ skipping 9302 matching lines @@
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     "rrect_clip_bw_gpu.png": {
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@@ skipping 2173 matching lines @@
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       "bugs": [
         1578
       ], 
       "reviewed-by-human": false
     }
   }
 }