Rebaseline shadertext2 after SkPaint::measureText changes

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

 {
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           12831071530564277917
         ]
       ], 
       "bugs": [
@@ skipping 16830 matching lines @@
       ], 
       "bugs": [
         1935
       ], 
       "reviewed-by-human": false
     }, 
     "shadertext2_8888.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          4721382661721666101
+          1898237381668598239
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "shadertext2_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          11081789658344209328
+          8372559706051131694
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "shadertext2_msaa16.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          6304960047606523701
+          3285314856458195690
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "shadertext2_nvprmsaa4.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          17371546210615613853
+          6167804049792018932
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "shadertext2_pdf-poppler.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           2811553342126518865
         ]
@@ skipping 3087 matching lines @@
           14019814087375927425
         ]
       ], 
       "bugs": [
         1935
       ], 
       "reviewed-by-human": false
     }
   }
 }