Update dftext expectations after https://codereview.chromium.org/772633003/.

expectations/gm/Test-Android-Nexus10-MaliT604-Arm7-Debug/expected-results.json

 {
   "actual-results": {
     "failed": null, 
     "failure-ignored": null, 
     "no-comparison": null, 
     "succeeded": null
   }, 
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
@@ skipping 5468 matching lines @@
           "bitmap-64bitMD5", 
           8850017817310905002
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "dftext_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          8073710266722538686
+          4015546113597176462
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "dftext_gpudft.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           8073710266722538686
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "dftext_msaa4.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          8073710266722538686
+          4015546113597176462
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "discard_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           11635187478196931850
         ]
@@ skipping 11254 matching lines @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           10584725278684600171
         ]
       ], 
       "reviewed-by-human": true
     }
   }
 }