Add text blob gm baselines.

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

 {
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           9785004568147979273
         ]
       ], 
       "bugs": [
@@ skipping 11491 matching lines @@
         [
           "bitmap-64bitMD5", 
           2736593828543197285
         ]
       ], 
       "bugs": [
         2146
       ], 
       "reviewed-by-human": false
     }, 
+    "textblob_565.png": {
+      "allowed-digests": [
+        [
+          "bitmap-64bitMD5", 
+          10762725566565304988
+        ]
+      ], 
+      "reviewed-by-human": true
+    }, 
+    "textblob_8888.png": {
+      "allowed-digests": [
+        [
+          "bitmap-64bitMD5", 
+          13958220661122877478
+        ]
+      ], 
+      "reviewed-by-human": true
+    }, 
+    "textblob_gpu.png": {
+      "allowed-digests": [
+        [
+          "bitmap-64bitMD5", 
+          6004554306774589861
+        ]
+      ], 
+      "reviewed-by-human": true
+    }, 
     "texteffects_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           8197028845488493324
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "texteffects_8888.png": {
@@ skipping 942 matching lines @@
           15843716056234692659
         ]
       ], 
       "bugs": [
         2146
       ], 
       "reviewed-by-human": false
     }
   }
 }