rebaseline pictureshader GM on GPU

expectations/gm/Test-Win8-ShuttleA-GTX660-x86_64-Release/expected-results.json

 {
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           12831071530564277917
         ]
       ], 
       "bugs": [
@@ skipping 15086 matching lines @@
           "bitmap-64bitMD5", 
           10380483174533663495
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "pictureshader_msaa16.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          16068130794510825896
+          14694612130825938684
         ]
       ], 
-      "reviewed-by-human": false
+      "reviewed-by-human": true
     }, 
     "pictureshader_nvprmsaa4.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          15881700783330850304
+          10380483174533663495
         ]
       ], 
-      "reviewed-by-human": false
+      "reviewed-by-human": true
     }, 
     "pictureshader_pdf-poppler.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           71577620991525908
         ]
       ], 
       "reviewed-by-human": false
     }, 
@@ skipping 4836 matching lines @@
           14019814087375927425
         ]
       ], 
       "bugs": [
         1935
       ], 
       "reviewed-by-human": false
     }
   }
 }