Fix for nexus 5 crashing in GL benches

GLBenches do not expect gl state  to change between onPerCanvasPreDraw and *PostDraw, but we do a clear and sometimes we clear as draw.  This causes us to bind vertex objects / programs / etc.

This change creates two new virtual methods which are called right before and immediately after timing.

BUG=skia:

Review URL: https://codereview.chromium.org/1379853003

1 files changed, 1 insertions, 1 deletions

diff --git a/bench/CodecBench.cpp b/bench/CodecBench.cpp
index a21aae1f0b..0b457a42ae 100644
--- a/bench/CodecBench.cpp
+++ b/bench/CodecBench.cpp
@@ -32,7 +32,7 @@ bool CodecBench::isSuitableFor(Backend backend) {
     return kNonRendering_Backend == backend;
 }
 
-void CodecBench::onPreDraw() {
+void CodecBench::onDelayedSetup() {
     SkAutoTDelete<SkCodec> codec(SkCodec::NewFromData(fData));
 
     fInfo = codec->getInfo().makeColorType(fColorType);