Rebase shadertext2,3 and stroketext on gpu configs

expectations/gm/Test-Win8-ShuttleA-GTX660-x86-Debug/expected-results.json

 {
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           12831071530564277917
         ]
       ], 
       "bugs": [
@@ skipping 16740 matching lines @@
           "bitmap-64bitMD5", 
           2113206247214385098
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "shadertext3_msaa16.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          13900944639817366223
+          14071403280264096223
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "shadertext3_nvprmsaa4.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          10246206376000090761
+          16741507987193604094
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "shadertext3_pdf-poppler.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           15412453447785472736
         ]
@@ skipping 1368 matching lines @@
           "bitmap-64bitMD5", 
           9400706697033338692
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "stroketext_msaa16.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          15960930300522201985
+          237633552255702584
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "stroketext_nvprmsaa4.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           15481694980398014047
         ]
@@ skipping 1677 matching lines @@
           14019814087375927425
         ]
       ], 
       "bugs": [
         1935
       ], 
       "reviewed-by-human": false
     }
   }
 }