Add test configs for instanced rendering

Adds the following configs and enables them on select bots:

  glinst, glinst4, glinstdit4, glinst16, glinstdit16,
  esinst, esinst4, esinstdit4

Makes general changes to GrContextOptions, GrCaps, etc. to facilitate
this.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2182783004

Review-Url: https://codereview.chromium.org/2182783004

1 files changed, 4 insertions, 0 deletions

diff --git a/dm/DM.cpp b/dm/DM.cpp
index 772cfe054d..7fe6efaf89 100644
--- a/dm/DM.cpp
+++ b/dm/DM.cpp
@@ -832,6 +832,10 @@ static Sink* create_sink(const SkCommandLineConfig* config) {
                 contextOptions = static_cast<GrContextFactory::ContextOptions>(
                     contextOptions | GrContextFactory::kEnableNVPR_ContextOptions);
             }
+            if (gpuConfig->getUseInstanced()) {
+                contextOptions = static_cast<GrContextFactory::ContextOptions>(
+                    contextOptions | GrContextFactory::kUseInstanced_ContextOptions);
+            }
             if (SkColorAndColorSpaceAreGammaCorrect(gpuConfig->getColorType(),
                                                     gpuConfig->getColorSpace())) {
                 contextOptions = static_cast<GrContextFactory::ContextOptions>(