Revert of GrBatchPrototype

src/gpu/GrBatch.h

Index: src/gpu/GrBatch.h
diff --git a/src/gpu/GrBatch.h b/src/gpu/GrBatch.h
deleted file mode 100644
index ceb2c5cc2a9da1d9ff65cc3cea1bb51fee763a4d..0000000000000000000000000000000000000000
--- a/src/gpu/GrBatch.h
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * 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 GrBatch_DEFINED
-#define GrBatch_DEFINED
-
-#include <new>
-// TODO remove this header when we move entirely to batch
-#include "GrGeometryProcessor.h"
-#include "SkRefCnt.h"
-#include "SkThread.h"
-#include "SkTypes.h"
-
-class GrBatchTarget;
-class GrGpu;
-class GrIndexBufferAllocPool;
-class GrPipeline;
-class GrVertexBufferAllocPool;
-
-struct GrInitInvariantOutput;
-
-/*
- * GrBatch is the base class for all Ganesh deferred geometry generators.  To facilitate
- * reorderable batching, Ganesh does not generate geometry inline with draw calls.  Instead, it
- * captures the arguments to the draw and then generates the geometry on demand.  This gives GrBatch
- * subclasses complete freedom to decide how / what they can batch.
- *
- * Batches are created when GrContext processes a draw call. Batches of the same  subclass may be
- * merged using combineIfPossible. When two batches merge, one takes on the union of the data
- * and the other is left empty. The merged batch becomes responsible for drawing the data from both
- * the original batches.
- *
- * If there are any possible optimizations which might require knowing more about the full state of
- * the draw, ie whether or not the GrBatch is allowed to tweak alpha for coverage, then this
- * information will be communicated to the GrBatch prior to geometry generation.
- */
-
-struct GrBatchOpt {
-  bool fCanTweakAlphaForCoverage;
-};
-
-class GrBatch : public SkRefCnt {
-public:
-    SK_DECLARE_INST_COUNT(GrBatch)
-    GrBatch() { SkDEBUGCODE(fUsed = false;) }
-    virtual ~GrBatch() {}
-
-    virtual const char* name() const = 0;
-    virtual void getInvariantOutputColor(GrInitInvariantOutput* out) const = 0;
-    virtual void getInvariantOutputCoverage(GrInitInvariantOutput* out) const = 0;
-
-    /*
-     * initBatchOpt is used to communicate possible optimizations to the GrBatch.  initBatchTracker
-     * is a hook for the some additional overrides from the GrXferProcessor.  This is a bit
-     * confusing but has to be like this until GrBatch is everywhere.
-     *
-     * TODO combine to a single init call when GrBatch is everywhere.
-     */
-    virtual void initBatchOpt(const GrBatchOpt&) = 0;
-    virtual void initBatchTracker(const GrPipelineInfo& init) = 0;
-
-    bool combineIfPossible(GrBatch* that) {
-        if (this->classID() != that->classID()) {
-            return false;
-        }
-
-        return onCombineIfPossible(that);
-    }
-
-    virtual bool onCombineIfPossible(GrBatch*) = 0;
-
-    virtual void generateGeometry(GrBatchTarget*, const GrPipeline*) = 0;
-
-    void* operator new(size_t size);
-    void operator delete(void* target);
-
-    void* operator new(size_t size, void* placement) {
-        return ::operator new(size, placement);
-    }
-    void operator delete(void* target, void* placement) {
-        ::operator delete(target, placement);
-    }
-
-    /**
-      * Helper for down-casting to a GrBatch subclass
-      */
-    template <typename T> const T& cast() const { return *static_cast<const T*>(this); }
-    template <typename T> T* cast() { return static_cast<T*>(this); }
-
-    uint32_t classID() const { SkASSERT(kIllegalBatchClassID != fClassID); return fClassID; }
-
-    // TODO no GrPrimitiveProcessors yet read fragment position
-    bool willReadFragmentPosition() const { return false; }
-
-    SkDEBUGCODE(bool isUsed() const { return fUsed; })
-
-protected:
-    template <typename PROC_SUBCLASS> void initClassID() {
-         static uint32_t kClassID = GenClassID();
-         fClassID = kClassID;
-    }
-
-    uint32_t fClassID;
-
-private:
-    static uint32_t GenClassID() {
-        // fCurrProcessorClassID has been initialized to kIllegalProcessorClassID. The
-        // atomic inc returns the old value not the incremented value. So we add
-        // 1 to the returned value.
-        uint32_t id = static_cast<uint32_t>(sk_atomic_inc(&gCurrBatchClassID)) + 1;
-        if (!id) {
-            SkFAIL("This should never wrap as it should only be called once for each GrBatch "
-                   "subclass.");
-        }
-        return id;
-    }
-
-    enum {
-        kIllegalBatchClassID = 0,
-    };
-    static int32_t gCurrBatchClassID;
-
-    SkDEBUGCODE(bool fUsed;)
-
-    typedef SkRefCnt INHERITED;
-};
-
-#endif