Update how we send draws to gpu backend to reduce state setting.

src/gpu/batches/GrTInstanceBatch.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrTInstanceBatch_DEFINED
 #define GrTInstanceBatch_DEFINED
 
@@ skipping 78 matching lines @@
     GrTInstanceBatch() : INHERITED(ClassID()) {}
 
     void onPrepareDraws(Target* target) const override {
         SkAutoTUnref<const GrGeometryProcessor> gp(Impl::CreateGP(this->seedGeometry(), 
                                                                   fOverrides));
         if (!gp) {
             SkDebugf("Couldn't create GrGeometryProcessor\n");
             return;
         }
 
-        target->initDraw(gp, this->pipeline());
+        target->initDraw(gp, kTriangles_GrPrimitiveType);
 
         size_t vertexStride = gp->getVertexStride();
         int instanceCount = fGeoData.count();
 
         SkAutoTUnref<const GrIndexBuffer> indexBuffer(
                 Impl::GetIndexBuffer(target->resourceProvider()));
         InstancedHelper helper;
-        void* vertices = helper.init(target, kTriangles_GrPrimitiveType, vertexStride,
-                                     indexBuffer, Impl::kVertsPerInstance,
+        void* vertices = helper.init(target, vertexStride, indexBuffer, Impl::kVertsPerInstance,
                                      Impl::kIndicesPerInstance, instanceCount);
         if (!vertices || !indexBuffer) {
             SkDebugf("Could not allocate vertices\n");
             return;
         }
 
         for (int i = 0; i < instanceCount; i++) {
             intptr_t verts = reinterpret_cast<intptr_t>(vertices) +
                              i * Impl::kVertsPerInstance * vertexStride;
             Impl::Tesselate(verts, vertexStride, fGeoData[i], fOverrides);
@@ skipping 25 matching lines @@
         return true;
     }
 
     GrXPOverridesForBatch fOverrides;
     SkSTArray<1, Geometry, true> fGeoData;
 
     typedef GrVertexBatch INHERITED;
 };
 
 #endif