Speculative Mac 10.6 fix: disable medium & high filter quality tests.

BUG=skia:
TBR=mtklein@google.com

Review URL: https://codereview.chromium.org/211693003

git-svn-id: http://skia.googlecode.com/svn/trunk@13947 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gm/matriximagefilter.cpp b/gm/matriximagefilter.cpp
index df691c9..29dec39 100644
--- a/gm/matriximagefilter.cpp
+++ b/gm/matriximagefilter.cpp
@@ -73,11 +73,14 @@
         canvas->translate(srcRect.width() + margin, 0);
         draw(canvas, srcRect, checkerboard, matrix, SkPaint::kLow_FilterLevel);
 
+#if 0
+        // This may be causing Mac 10.6 to barf.
         canvas->translate(srcRect.width() + margin, 0);
         draw(canvas, srcRect, checkerboard, matrix, SkPaint::kMedium_FilterLevel);
 
         canvas->translate(srcRect.width() + margin, 0);
         draw(canvas, srcRect, checkerboard, matrix, SkPaint::kHigh_FilterLevel);
+#endif
     }
 
 private: