Fix stale assert in GrDrawTarget::print

Fix stale assert in GrDrawTarget::print.

R=bsalomon@google.com

Author: kkinnunen@nvidia.com

Review URL: https://codereview.chromium.org/66333002

git-svn-id: http://skia.googlecode.com/svn/trunk@12201 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrDrawTarget.cpp b/src/gpu/GrDrawTarget.cpp
index 9f35065..9397d14 100644
--- a/src/gpu/GrDrawTarget.cpp
+++ b/src/gpu/GrDrawTarget.cpp
@@ -1044,7 +1044,8 @@
     GR_STATIC_ASSERT(6 == kBGRA_8888_GrPixelConfig);
     GR_STATIC_ASSERT(SK_ARRAY_COUNT(kConfigNames) == kGrPixelConfigCnt);
 
-    SkASSERT(!fConfigRenderSupport[kUnknown_GrPixelConfig]);
+    SkASSERT(!fConfigRenderSupport[kUnknown_GrPixelConfig][0]);
+    SkASSERT(!fConfigRenderSupport[kUnknown_GrPixelConfig][1]);
     for (size_t i = 0; i < SK_ARRAY_COUNT(kConfigNames); ++i)  {
         if (i != kUnknown_GrPixelConfig) {
             GrPrintf("%s is renderable: %s, with MSAA: %s\n",