add baseline for clip_strokerect

expectations/gm/Test-ChromeOS-Alex-GMA3150-x86-Release/expected-results.json

 {
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           12831071530564277917
         ]
       ], 
       "bugs": [
@@ skipping 1653 matching lines @@
         [
           "bitmap-64bitMD5", 
           12600235552582834170
         ]
       ], 
       "bugs": [
         1578
       ], 
       "reviewed-by-human": false
     }, 
+    "clip_strokerect_565.png": {
+      "allowed-digests": [
+        [
+          "bitmap-64bitMD5", 
+          13890106243991361094
+        ]
+      ], 
+      "reviewed-by-human": true
+    }, 
+    "clip_strokerect_8888.png": {
+      "allowed-digests": [
+        [
+          "bitmap-64bitMD5", 
+          13890106243991361094
+        ]
+      ], 
+      "reviewed-by-human": true
+    }, 
     "clipped-bitmap-shaders-clamp-hq_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           5543970311616574408
         ]
       ], 
       "bugs": [
         1759
       ], 
@@ skipping 5346 matching lines @@
           2149562185397201955
         ]
       ], 
       "bugs": [
         1578
       ], 
       "reviewed-by-human": false
     }
   }
 }