All batches do their own pipeline compare

src/gpu/GrBatch.h

Index: src/gpu/GrBatch.h
diff --git a/src/gpu/GrBatch.h b/src/gpu/GrBatch.h
index b77011268b5a23489deb55b76278a5f0e5620efd..51c556e737a0b6a9a15f23f2db233b86a19e2138 100644
--- a/src/gpu/GrBatch.h
+++ b/src/gpu/GrBatch.h
@@ -57,10 +57,6 @@ public:
             return false;
         }
 
-        if (!this->pipeline()->isEqual(*that->pipeline())) {
-            return false;
-        }
-
         return this->onCombineIfPossible(that);
     }
 
@@ -97,6 +93,7 @@ public:
 
     SkDEBUGCODE(bool isUsed() const { return fUsed; })
 
+    const GrPipeline* pipeline() const { return fPipeline; }
     void setPipeline(const GrPipeline* pipeline) { fPipeline.reset(SkRef(pipeline)); }
 
 protected:
@@ -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 {