Improve caching of dashed paths in GrStencilAndCoverPathRenderer

src/gpu/GrPathRange.h

Index: src/gpu/GrPathRange.h
diff --git a/src/gpu/GrPathRange.h b/src/gpu/GrPathRange.h
index 86883e3c27083c1f07a88175669e5138c4bc8654..035837fc361d74cbecdbb4feb2f60a886ee195de 100644
--- a/src/gpu/GrPathRange.h
+++ b/src/gpu/GrPathRange.h
@@ -10,14 +10,13 @@
 
 #include "GrGpuResource.h"
 #include "SkRefCnt.h"
-#include "SkStrokeRec.h"
 #include "SkTArray.h"
 
 class SkPath;
 class SkDescriptor;
 
 /**
- * Represents a contiguous range of GPU path objects, all with a common stroke.
+ * Represents a contiguous range of GPU path objects.
  * This object is immutable with the exception that individual paths may be
  * initialized lazily.
  */
@@ -50,7 +49,9 @@ public:
     public:
         virtual int getNumPaths() = 0;
         virtual void generatePath(int index, SkPath* out) = 0;
+#ifdef SK_DEBUG
         virtual bool isEqualTo(const SkDescriptor&) const { return false; }
+#endif
         virtual ~PathGenerator() {}
     };
 
@@ -58,22 +59,22 @@ public:
      * Initialize a lazy-loaded path range. This class will generate an SkPath and call
      * onInitPath() for each path within the range before it is drawn for the first time.
      */
-    GrPathRange(GrGpu*, PathGenerator*, const SkStrokeRec& stroke);
+    GrPathRange(GrGpu*, PathGenerator*);
 
     /**
      * Initialize an eager-loaded path range. The subclass is responsible for ensuring all
      * the paths are initialized up front.
      */
-    GrPathRange(GrGpu*, int numPaths, const SkStrokeRec& stroke);
-
-    virtual bool isEqualTo(const SkDescriptor& desc) const {
-        return NULL != fPathGenerator.get() && fPathGenerator->isEqualTo(desc);
-    }
+    GrPathRange(GrGpu*, int numPaths);
 
     int getNumPaths() const { return fNumPaths; }
-    const SkStrokeRec& getStroke() const { return fStroke; }
     const PathGenerator* getPathGenerator() const { return fPathGenerator.get(); }
 
+#ifdef SK_DEBUG
+    virtual bool isEqualTo(const SkDescriptor& desc) const {
+        return NULL != fPathGenerator.get() && fPathGenerator->isEqualTo(desc);
+    }
+#endif
 protected:
     // Initialize a path in the range before drawing. This is only called when
     // fPathGenerator is non-null. The child class need not call didChangeGpuMemorySize(),
@@ -89,7 +90,6 @@ private:
     mutable SkAutoTUnref<PathGenerator> fPathGenerator;
     mutable SkTArray<uint8_t, true /*MEM_COPY*/> fGeneratedPaths;
     const int fNumPaths;
-    const SkStrokeRec fStroke;
 
     typedef GrGpuResource INHERITED;
 };