Add a simpler key type for scratch resource keys.

src/gpu/GrPathRange.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrPathRange_DEFINED
 #define GrPathRange_DEFINED
 
@@ skipping 10 matching lines @@
  * This object is immutable with the exception that individual paths may be
  * initialized lazily.
  */
 
 class GrPathRange : public GrGpuResource {
 public:
     SK_DECLARE_INST_COUNT(GrPathRange);
 
     static const bool kIsWrapped = false;
 
-    /**
-     * Return the resourceType intended for cache lookups involving GrPathRange.
-     */
-    static GrResourceKey::ResourceType resourceType() {
-        static const GrResourceKey::ResourceType type = GrResourceKey::GenerateResourceType();
-        return type;
-    }
-
     enum PathIndexType {
         kU8_PathIndexType,   //!< uint8_t
         kU16_PathIndexType,  //!< uint16_t
         kU32_PathIndexType,  //!< uint32_t
 
         kLast_PathIndexType = kU32_PathIndexType
     };
 
     static inline int PathIndexSizeInBytes(PathIndexType type) {
         GR_STATIC_ASSERT(0 == kU8_PathIndexType);
@@ skipping 49 matching lines @@
 
     mutable SkAutoTUnref<PathGenerator> fPathGenerator;
     mutable SkTArray<uint8_t, true /*MEM_COPY*/> fGeneratedPaths;
     const int fNumPaths;
     const SkStrokeRec fStroke;
 
     typedef GrGpuResource INHERITED;
 };
 
 #endif