Take care of a bunch of pending GPU rebaselines and remove tests from ignored-tests.txt

expectations/gm/Test-Android-Xoom-Tegra2-Arm7-Debug/expected-results.json

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@@ skipping 3364 matching lines @@
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@@ skipping 117 matching lines @@
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@@ skipping 499 matching lines @@
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@@ skipping 2190 matching lines @@
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@@ skipping 2244 matching lines @@
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@@ skipping 163 matching lines @@
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