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

src/gpu/GrGpu.cpp

Index: src/gpu/GrGpu.cpp
diff --git a/src/gpu/GrGpu.cpp b/src/gpu/GrGpu.cpp
index afeeda7ae61eefe802acf0efadf3f32918d5bed4..4770f7113123a26d04943778b0606f6e66072b27 100644
--- a/src/gpu/GrGpu.cpp
+++ b/src/gpu/GrGpu.cpp
@@ -25,7 +25,6 @@
 #include "SkTypes.h"
 
 GrVertices& GrVertices::operator =(const GrVertices& di) {
-    fPrimitiveType  = di.fPrimitiveType;
     fStartVertex    = di.fStartVertex;
     fStartIndex     = di.fStartIndex;
     fVertexCount    = di.fVertexCount;
@@ -492,17 +491,13 @@ const GrGpu::MultisampleSpecs& GrGpu::getMultisampleSpecs(GrRenderTarget* rt,
 
 ////////////////////////////////////////////////////////////////////////////////
 
-void GrGpu::draw(const DrawArgs& args, const GrVertices& vertices) {
+void GrGpu::draw(const GrPipeline& pipeline,
+                 const GrPrimitiveProcessor& primProc,
+                 GrPrimitiveType primitiveType,
+                 const GrVertices* vertArray,
+                 int drawCount) {
     this->handleDirtyContext();
-    if (GrXferBarrierType barrierType = args.fPipeline->xferBarrierType(*this->caps())) {
-        this->xferBarrier(args.fPipeline->getRenderTarget(), barrierType);
-    }
 
-    GrVertices::Iterator iter;
-    const GrNonInstancedVertices* verts = iter.init(vertices);
-    do {
-        this->onDraw(args, *verts);
-        fStats.incNumDraws();
-    } while ((verts = iter.next()));
+    this->onDraw(pipeline, primProc, primitiveType, vertArray, drawCount);
 }