pdf-mac clear to black rebaseline

expectations/gm/Test-Mac10.8-MacMini4.1-GeForce320M-x86_64-Debug/expected-results.json

Index: expectations/gm/Test-Mac10.8-MacMini4.1-GeForce320M-x86_64-Debug/expected-results.json
diff --git a/expectations/gm/Test-Mac10.8-MacMini4.1-GeForce320M-x86_64-Debug/expected-results.json b/expectations/gm/Test-Mac10.8-MacMini4.1-GeForce320M-x86_64-Debug/expected-results.json
index 67ecdd4b554ccbde3e351d86d3d0a014c4cbdbfd..ee49203fa4a8f29784193765f50edc4daeb4e637 100644
--- a/expectations/gm/Test-Mac10.8-MacMini4.1-GeForce320M-x86_64-Debug/expected-results.json
+++ b/expectations/gm/Test-Mac10.8-MacMini4.1-GeForce320M-x86_64-Debug/expected-results.json
@@ -4804,10 +4804,10 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          5557054264948942887
+          15967084461769578851
         ]
       ], 
-      "reviewed-by-human": true
+      "reviewed-by-human": false
     }, 
     "coloremoji_565.png": {
       "allowed-digests": [
@@ -6514,11 +6514,11 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          8589395530227712121
+          11880185855418792365
         ]
       ], 
       "ignore-failure": false, 
-      "reviewed-by-human": true
+      "reviewed-by-human": false
     }, 
     "displacement_pdf-poppler.png": {
       "allowed-digests": [
@@ -13206,11 +13206,11 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          8983923604084307345
+          17300030095663402731
         ]
       ], 
       "ignore-failure": false, 
-      "reviewed-by-human": true
+      "reviewed-by-human": false
     }, 
     "offsetimagefilter_pdf-poppler.png": {
       "allowed-digests": [
@@ -13900,12 +13900,9 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          9642424294640112060
+          17120868825023817733
         ]
       ], 
-      "bugs": [
-        1578
-      ], 
       "reviewed-by-human": false
     }, 
     "perlinnoise_pdf-poppler.png": {
@@ -17148,11 +17145,11 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          9731024951998568241
+          14795861386913800488
         ]
       ], 
       "ignore-failure": false, 
-      "reviewed-by-human": true
+      "reviewed-by-human": false
     }, 
     "tileimagefilter_pdf-poppler.png": {
       "allowed-digests": [
@@ -18046,11 +18043,11 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          6406067596114174002
+          5717107989320932840
         ]
       ], 
       "ignore-failure": false, 
-      "reviewed-by-human": true
+      "reviewed-by-human": false
     }, 
     "xfermodeimagefilter_pdf-poppler.png": {
       "allowed-digests": [