Generating gl processor key is now recursive

src/gpu/GrPrimitiveProcessor.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrPrimitiveProcessor_DEFINED
 #define GrPrimitiveProcessor_DEFINED
 
@@ skipping 202 matching lines @@
         SkASSERT(index < fNumAttribs);
         return fAttribs[index];
     }
 
     // Returns the vertex stride of the GP.  A common use case is to request geometry from a
     // drawtarget based off of the stride, and to populate this memory using an implicit array of
     // structs.  In this case, it is best to assert the vertexstride == sizeof(VertexStruct).
     size_t getVertexStride() const { return fVertexStride; }
 
     /**
-     * Gets a transformKey from an array of coord transforms
+     * Computes a transformKey from an array of coord transforms. Will only look at the first
+     * <numCoords> transforms in the array.
+     *
+     * TODO: A better name for this function  would be "compute" instead of "get".
      */
-    uint32_t getTransformKey(const SkTArray<const GrCoordTransform*, true>&) const;
+    uint32_t getTransformKey(const SkTArray<const GrCoordTransform*, true>& coords,
+                             int numCoords) const;
 
     /**
      * Sets a unique key on the GrProcessorKeyBuilder that is directly associated with this geometry
      * processor's GL backend implementation.
+     *
+     * TODO: A better name for this function  would be "compute" instead of "get".
      */
     virtual void getGLProcessorKey(const GrBatchTracker& bt,
                                    const GrGLSLCaps& caps,
                                    GrProcessorKeyBuilder* b) const = 0;
 
 
     /** Returns a new instance of the appropriate *GL* implementation class
         for the given GrProcessor; caller is responsible for deleting
         the object. */
     virtual GrGLPrimitiveProcessor* createGLInstance(const GrBatchTracker& bt,
@@ skipping 19 matching lines @@
 
 private:
     virtual bool hasExplicitLocalCoords() const = 0;
 
     bool fIsPathRendering;
 
     typedef GrProcessor INHERITED;
 };
 
 #endif