Auto-compare GrProcessors' texture accesses in isEqual().

include/gpu/GrProcessor.h

Index: include/gpu/GrProcessor.h
diff --git a/include/gpu/GrProcessor.h b/include/gpu/GrProcessor.h
index c860b32c1bdc0f235a81cb3988342f886dd2b7c1..f7579cd76e3f667a47f490ba7cf72ca51d22e3d6 100644
--- a/include/gpu/GrProcessor.h
+++ b/include/gpu/GrProcessor.h
@@ -200,6 +200,8 @@ public:
     template <typename T> const T& cast() const { return *static_cast<const T*>(this); }
 
 protected:
+    GrProcessor() : fWillReadFragmentPosition(false) {}
+
     /**
      * Subclasses call this from their constructor to register GrTextureAccesses. The processor
      * subclass manages the lifetime of the accesses (this function only stores a pointer). The
@@ -208,8 +210,7 @@ protected:
      */
     void addTextureAccess(const GrTextureAccess* textureAccess);
 
-    GrProcessor()
-        : fWillReadFragmentPosition(false) {}
+    bool hasSameTextureAccesses(const GrProcessor&) const;
 
     /**
      * If the prcoessor will generate a backend-specific processor that will read the fragment
@@ -218,8 +219,6 @@ protected:
      */
     void setWillReadFragmentPosition() { fWillReadFragmentPosition = true; }
 
-    SkDEBUGCODE(void assertTexturesEqual(const GrProcessor& other) const;)
-
 private:
 
     /**