Rebaseline gpu and pdf bleed GM images

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

 {
   "actual-results": {
     "failed": null, 
     "failure-ignored": null, 
     "no-comparison": null, 
     "succeeded": null
   }, 
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
@@ skipping 866 matching lines @@
         [
           "bitmap-64bitMD5", 
           14764138263757444362
         ]
       ]
     }, 
     "bleed_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          6293990557705874658
+          16311483001808973883
         ]
-      ]
+      ], 
+      "reviewed-by-human": true
     }, 
     "bleed_pdf-poppler.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           4572298529323124815
         ]
       ], 
       "bugs": [
         1578
@@ skipping 10578 matching lines @@
           9087691823784686185
         ]
       ], 
       "bugs": [
         1578
       ], 
       "reviewed-by-human": false
     }
   }
 }