rebaseline after clear change -- pdf was not treating clear as SRC_MODE

expectations/gm/Test-Mac10.6-MacMini4.1-GeForce320M-x86_64-Debug/expected-results.json

Index: expectations/gm/Test-Mac10.6-MacMini4.1-GeForce320M-x86_64-Debug/expected-results.json
diff --git a/expectations/gm/Test-Mac10.6-MacMini4.1-GeForce320M-x86_64-Debug/expected-results.json b/expectations/gm/Test-Mac10.6-MacMini4.1-GeForce320M-x86_64-Debug/expected-results.json
index c75f785ef7d752584ad222b0c23b5c46a9764fed..4fe619d4a888d4d9bca78b26114c66007868dbdb 100644
--- a/expectations/gm/Test-Mac10.6-MacMini4.1-GeForce320M-x86_64-Debug/expected-results.json
+++ b/expectations/gm/Test-Mac10.6-MacMini4.1-GeForce320M-x86_64-Debug/expected-results.json
@@ -4782,7 +4782,7 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          5557054264948942887
+          15967084461769578851
         ]
       ], 
       "reviewed-by-human": true
@@ -6551,7 +6551,7 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          15617225701808152209
+          1846754159880648703
         ]
       ], 
       "ignore-failure": false, 
@@ -13470,7 +13470,7 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          12557631619688828859
+          3186344092998755977
         ]
       ], 
       "ignore-failure": false, 
@@ -14185,13 +14185,10 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          9642424294640112060
+          17120868825023817733
         ]
       ], 
-      "bugs": [
-        1578
-      ], 
-      "reviewed-by-human": false
+      "reviewed-by-human": true
     }, 
     "perlinnoise_pdf-poppler.png": {
       "allowed-digests": [
@@ -17542,7 +17539,7 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          8564086167423775130
+          12217816694960917505
         ]
       ], 
       "ignore-failure": false, 
@@ -18459,7 +18456,7 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          1266663168591664553
+          4163938502053643285
         ]
       ], 
       "ignore-failure": false,