Fix visualbench flicker on triple buffered platforms
BUG=skia:
Review URL: https://codereview.chromium.org/1441073005
diff --git a/tools/VisualBench/VisualStreamTimingModule.cpp b/tools/VisualBench/VisualStreamTimingModule.cpp
index cb748ca..0ac698e 100644
--- a/tools/VisualBench/VisualStreamTimingModule.cpp
+++ b/tools/VisualBench/VisualStreamTimingModule.cpp
@@ -25,7 +25,7 @@
case kReset_InitState:
// This will flicker unfortunately, but as we are reseting the GLContext each bench,
// we unfortunately don't have a choice
- fOwner->clear(canvas, SK_ColorWHITE, 2);
+ fOwner->clear(canvas, SK_ColorWHITE, 3);
fBenchmarkStream->current()->preTimingHooks(canvas);
break;
case kNone_InitState: