Rebase shadertext2,3 and stroketext on gpu configs

expectations/gm/Test-Ubuntu12-ShuttleA-GTX660-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 16318 matching lines @@
           "bitmap-64bitMD5", 
           976726529419040249
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "shadertext3_msaa16.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          8982357546868001360
+          11234776002624544890
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "shadertext3_nvprmsaa4.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           3569770788112621273
         ]
@@ skipping 1304 matching lines @@
           "bitmap-64bitMD5", 
           2400348954160929648
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "stroketext_msaa16.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          16313266180313846066
+          4763201130776673922
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "stroketext_nvprmsaa4.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           5216165706151276286
         ]
@@ skipping 1623 matching lines @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           14883391086059083985
         ]
       ], 
       "reviewed-by-human": true
     }
   }
 }