Revert of Give GrBatch a pointer to GrPipeline (patchset #1 id:1 of https://codereview.chromium.org/1237283007/)

Reason for revert:
breaking nanobench

Original issue's description:
> Give GrBatch a pointer to GrPipeline
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/1170a12839218f7a23c93487bf95fd83aae0201f

TBR=bsalomon@google.com,joshualitt@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1239073002

gm/beziereffects.cpp

@@ -46,7 +46,6 @@ private:
     BezierCubicOrConicTestBatch(const GrGeometryProcessor* gp, const Geometry& geo,
                                 const SkScalar klmEqs[9], SkScalar sign)
         : INHERITED(gp, geo.fBounds) {
-        this->initClassID<BezierCubicOrConicTestBatch>();
         for (int i = 0; i < 9; i++) {
             fKlmEqs[i] = klmEqs[i];
         }
@@ -448,7 +447,6 @@ private:
         : INHERITED(gp, geo.fBounds)
         , fGeometry(geo)
         , fDevToUV(devToUV) {
-        this->initClassID<BezierQuadTestBatch>();
     }
 
     struct Vertex {

gm/convexpolyeffect.cpp

@@ -43,7 +43,6 @@ private:
     ConvexPolyTestBatch(const GrGeometryProcessor* gp, const Geometry& geo)
         : INHERITED(gp, geo.fBounds)
         , fGeometry(geo) {
-        this->initClassID<ConvexPolyTestBatch>();
     }
 
     Geometry* geoData(int index) override {

src/gpu/GrBatch.h

@@ -11,9 +11,9 @@
 #include <new>
 #include "GrBatchTarget.h"
 #include "GrGeometryProcessor.h"
-#include "GrNonAtomicRef.h"
 #include "GrVertices.h"
 #include "SkAtomics.h"
+#include "SkRefCnt.h"
 #include "SkTypes.h"
 
 class GrGpu;
@@ -37,8 +37,9 @@ struct GrInitInvariantOutput;
  * information will be communicated to the GrBatch prior to geometry generation.
  */
 
-class GrBatch : public GrNonAtomicRef {
+class GrBatch : public SkRefCnt {
 public:
+
     GrBatch() : fClassID(kIllegalBatchClassID), fNumberOfDraws(0) { SkDEBUGCODE(fUsed = false;) }
     virtual ~GrBatch() {}
 
@@ -57,10 +58,6 @@ public:
             return false;
         }
 
-        if (!this->pipeline()->isEqual(*that->pipeline())) {
-            return false;
-        }
-
         return this->onCombineIfPossible(that);
     }
 
@@ -97,14 +94,14 @@ public:
 
     SkDEBUGCODE(bool isUsed() const { return fUsed; })
 
-    void setPipeline(const GrPipeline* pipeline) { fPipeline.reset(SkRef(pipeline)); }
-
 protected:
     template <typename PROC_SUBCLASS> void initClassID() {
          static uint32_t kClassID = GenClassID();
          fClassID = kClassID;
     }
 
+    uint32_t fClassID;
+
     // NOTE, compute some bounds, even if extremely conservative.  Do *NOT* setLargest on the bounds
     // rect because we outset it for dst copy textures
     void setBounds(const SkRect& newBounds) { fBounds = newBounds; }
@@ -113,8 +110,6 @@ protected:
         return fBounds.joinPossiblyEmptyRect(otherBounds);
     }
 
-    const GrPipeline* pipeline() const { return fPipeline; }
-
     /** Helper for rendering instances using an instanced index index buffer. This class creates the
         space for the vertices and flushes the draws to the batch target.*/
    class InstancedHelper {
@@ -153,7 +148,6 @@ protected:
         typedef InstancedHelper INHERITED;
     };
 
-    uint32_t fClassID;
     SkRect fBounds;
 
 private:
@@ -172,11 +166,12 @@ private:
     enum {
         kIllegalBatchClassID = 0,
     };
-    SkAutoTUnref<const GrPipeline> fPipeline;
     static int32_t gCurrBatchClassID;
-    int fNumberOfDraws;
+
     SkDEBUGCODE(bool fUsed;)
 
+    int fNumberOfDraws;
+
     typedef SkRefCnt INHERITED;
 };
 

src/gpu/GrPipeline.h

@@ -10,7 +10,6 @@
 
 #include "GrColor.h"
 #include "GrGpu.h"
-#include "GrNonAtomicRef.h"
 #include "GrPendingFragmentStage.h"
 #include "GrPrimitiveProcessor.h"
 #include "GrProgramDesc.h"
@@ -27,8 +26,10 @@ class GrPipelineBuilder;
  * Class that holds an optimized version of a GrPipelineBuilder. It is meant to be an immutable
  * class, and contains all data needed to set the state for a gpu draw.
  */
-class GrPipeline : public GrNonAtomicRef {
+class GrPipeline {
 public:
+    
+
     GrPipeline(const GrPipelineBuilder&,
                const GrProcOptInfo& colorPOI,
                const GrProcOptInfo& coveragePOI,

src/gpu/GrReorderCommandBuilder.cpp

@@ -23,7 +23,6 @@ GrTargetCommands::Cmd* GrReorderCommandBuilder::recordDrawBatch(State* state, Gr
     // Experimentally we have found that most batching occurs within the first 10 comparisons.
     static const int kMaxLookback = 10;
     int i = 0;
-    batch->setPipeline(state->getPipeline());
     if (!this->cmdBuffer()->empty()) {
         GrTargetCommands::CmdBuffer::ReverseIter reverseIter(*this->cmdBuffer());
 
@@ -31,7 +30,8 @@ GrTargetCommands::Cmd* GrReorderCommandBuilder::recordDrawBatch(State* state, Gr
             if (Cmd::kDrawBatch_CmdType == reverseIter->type()) {
                 DrawBatch* previous = static_cast<DrawBatch*>(reverseIter.get());
 
-                if (previous->fBatch->combineIfPossible(batch)) {
+                if (previous->fState->getPipeline()->isEqual(*state->getPipeline()) &&
+                    previous->fBatch->combineIfPossible(batch)) {
                     return NULL;
                 }