partial rebaseline for image scaling

BUG=skia:

Review URL: https://codereview.chromium.org/520863002
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 8e23f37..057e726 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
@@ -4969,7 +4969,7 @@
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           "bitmap-64bitMD5", 
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+          16760516999045902880
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@@ -4978,7 +4978,7 @@
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@@ -5152,7 +5152,7 @@
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@@ -5161,7 +5161,7 @@
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@@ -5335,7 +5335,7 @@
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@@ -5344,7 +5344,7 @@
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@@ -6094,7 +6094,7 @@
       "allowed-digests": [
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+          5768044287840033357
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@@ -6103,7 +6103,7 @@
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+          6935773165017827364
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@@ -6133,7 +6133,7 @@
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+          8671570728952009368
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@@ -6142,7 +6142,7 @@
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+          939720769378298526
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@@ -6175,7 +6175,7 @@
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+          4764666190884059758
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@@ -6184,7 +6184,7 @@
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@@ -6217,7 +6217,7 @@
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+          9417618387713208391
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@@ -6226,7 +6226,7 @@
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+          12875792784913551813
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@@ -6259,7 +6259,7 @@
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+          2021729417891596038
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@@ -6268,7 +6268,7 @@
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+          13987077395880214723
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@@ -6301,7 +6301,7 @@
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@@ -6310,7 +6310,7 @@
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@@ -6343,7 +6343,7 @@
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@@ -6352,7 +6352,7 @@
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@@ -6385,7 +6385,7 @@
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@@ -6394,7 +6394,7 @@
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@@ -6427,7 +6427,7 @@
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@@ -6436,7 +6436,7 @@
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@@ -6511,7 +6511,7 @@
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@@ -6520,7 +6520,7 @@
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@@ -6592,7 +6592,7 @@
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@@ -6601,7 +6601,7 @@
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@@ -6631,7 +6631,7 @@
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@@ -6640,7 +6640,7 @@
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