Massive rebaseline of gpu images after matrix change.

expectations/gm/Test-Win8-ShuttleA-HD7770-x86_64-Release/expected-results.json

Index: expectations/gm/Test-Win8-ShuttleA-HD7770-x86_64-Release/expected-results.json
diff --git a/expectations/gm/Test-Win8-ShuttleA-HD7770-x86_64-Release/expected-results.json b/expectations/gm/Test-Win8-ShuttleA-HD7770-x86_64-Release/expected-results.json
index 2970e9a89af1e964e82bf37a32dddfc111d1f78e..90bb08543ffcdeafebf16ee22442424b80d6b831 100644
--- a/expectations/gm/Test-Win8-ShuttleA-HD7770-x86_64-Release/expected-results.json
+++ b/expectations/gm/Test-Win8-ShuttleA-HD7770-x86_64-Release/expected-results.json
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