Rebaseline current failures and those ignored for GPU rect change.

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

 {
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           9785004568147979273
         ]
       ], 
       "bugs": [
@@ skipping 10993 matching lines @@
           "bitmap-64bitMD5", 
           13623167137100309594
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "srcmode_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          374109213617886566
+          15329214511771191336
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "srcmode_pdf-poppler.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           646844219492939769
         ]
@@ skipping 1388 matching lines @@
           15843716056234692659
         ]
       ], 
       "bugs": [
         2146
       ], 
       "reviewed-by-human": false
     }
   }
 }