All batches do their own pipeline compare

src/gpu/GrRectBatch.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrRectBatch.h"
 
 #include "GrBatch.h"
@@ skipping 155 matching lines @@
     GrColor color() const { return fBatch.fColor; }
     bool usesLocalCoords() const { return fBatch.fUsesLocalCoords; }
     bool colorIgnored() const { return fBatch.fColorIgnored; }
     const SkMatrix& viewMatrix() const { return fGeoData[0].fViewMatrix; }
     const SkMatrix& localMatrix() const { return fGeoData[0].fLocalMatrix; }
     bool hasLocalRect() const { return fGeoData[0].fHasLocalRect; }
     bool hasLocalMatrix() const { return fGeoData[0].fHasLocalMatrix; }
     bool coverageIgnored() const { return fBatch.fCoverageIgnored; }
 
     bool onCombineIfPossible(GrBatch* t) override {
+        if (!this->pipeline()->isEqual(*t->pipeline())) {
+            return false;
+        }
+
         RectBatch* that = t->cast<RectBatch>();
 
         if (this->hasLocalRect() != that->hasLocalRect()) {
             return false;
         }
 
         SkASSERT(this->usesLocalCoords() == that->usesLocalCoords());
         if (!this->hasLocalRect() && this->usesLocalCoords()) {
             if (!this->viewMatrix().cheapEqualTo(that->viewMatrix())) {
                 return false;
@@ skipping 82 matching lines @@
     if (hasLocalMatrix) {
         localMatrix = GrTest::TestMatrix(random);
     }
 
     return GrRectBatch::Create(color, viewMatrix, rect,
                                hasLocalRect ? &localRect : NULL,
                                hasLocalMatrix ? &localMatrix : NULL);
 }
 
 #endif