Rebaselines for new colortype-xfermodes gm

TBR=bsalomon@google.com

BUG=skia:

Review URL: https://codereview.chromium.org/695343002
diff --git a/expectations/gm/Test-Win8-ShuttleA-HD7770-x86-Release/expected-results.json b/expectations/gm/Test-Win8-ShuttleA-HD7770-x86-Release/expected-results.json
index aa6f65f..8043804 100644
--- a/expectations/gm/Test-Win8-ShuttleA-HD7770-x86-Release/expected-results.json
+++ b/expectations/gm/Test-Win8-ShuttleA-HD7770-x86-Release/expected-results.json
@@ -3921,6 +3921,33 @@
       ], 
       "reviewed-by-human": false
     }, 
+    "colortype_xfermodes_565.png": {
+      "allowed-digests": [
+        [
+          "bitmap-64bitMD5", 
+          16869605776740615983
+        ]
+      ], 
+      "reviewed-by-human": true
+    }, 
+    "colortype_xfermodes_8888.png": {
+      "allowed-digests": [
+        [
+          "bitmap-64bitMD5", 
+          8526183727184223225
+        ]
+      ], 
+      "reviewed-by-human": true
+    }, 
+    "colortype_xfermodes_gpu.png": {
+      "allowed-digests": [
+        [
+          "bitmap-64bitMD5", 
+          1921110399367377223
+        ]
+      ], 
+      "reviewed-by-human": true
+    }, 
     "complexclip2_565.png": {
       "allowed-digests": [
         [