GrBatchPrototype

BUG=skia:

Committed: https://skia.googlesource.com/skia/+/d15e4e45374275c045572b304c229237c4a82be4

Committed: https://skia.googlesource.com/skia/+/d5a7db4a867c7e6ccf8451a053d987b470099198

Review URL: https://codereview.chromium.org/845103005
diff --git a/src/gpu/GrDrawTarget.cpp b/src/gpu/GrDrawTarget.cpp
index e8a758d..b89d70e 100644
--- a/src/gpu/GrDrawTarget.cpp
+++ b/src/gpu/GrDrawTarget.cpp
@@ -6,9 +6,9 @@
  * found in the LICENSE file.
  */
 
-
-
 #include "GrDrawTarget.h"
+
+#include "GrBatch.h"
 #include "GrContext.h"
 #include "GrDrawTargetCaps.h"
 #include "GrPath.h"
@@ -526,6 +526,29 @@
     }
 }
 
+
+void GrDrawTarget::drawBatch(GrPipelineBuilder* pipelineBuilder,
+                             GrBatch* batch,
+                             const SkRect* devBounds) {
+    SkASSERT(pipelineBuilder);
+    // TODO some kind of checkdraw, but not at this level
+
+    // Setup clip
+    GrScissorState scissorState;
+    GrPipelineBuilder::AutoRestoreEffects are;
+    GrPipelineBuilder::AutoRestoreStencil ars;
+    if (!this->setupClip(pipelineBuilder, &are, &ars, &scissorState, devBounds)) {
+        return;
+    }
+
+    GrDeviceCoordTexture dstCopy;
+    if (!this->setupDstReadIfNecessary(pipelineBuilder, &dstCopy, devBounds)) {
+        return;
+    }
+
+    this->onDrawBatch(batch, *pipelineBuilder, scissorState, dstCopy.texture() ? &dstCopy : NULL);
+}
+
 static const GrStencilSettings& winding_path_stencil_settings() {
     GR_STATIC_CONST_SAME_STENCIL_STRUCT(gSettings,
         kIncClamp_StencilOp,