Make GPU unit tests use GrContexts of different GL types.
Review URL: https://codereview.appspot.com/7281046

git-svn-id: http://skia.googlecode.com/svn/trunk@7540 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tests/skia_test.cpp b/tests/skia_test.cpp
index 8a1feae..18c8c84 100644
--- a/tests/skia_test.cpp
+++ b/tests/skia_test.cpp
@@ -154,7 +154,7 @@
 #endif
 
     SkGraphics::Term();
-    GpuTest::DestroyContext();
+    GpuTest::DestroyContexts();
 
     return (failCount == 0) ? 0 : 1;
 }