Use per-typeface sets of glyphs for nvpr text

src/gpu/GrPathRendering.h

Index: src/gpu/GrPathRendering.h
diff --git a/src/gpu/GrPathRendering.h b/src/gpu/GrPathRendering.h
index 863da270c79719c3119255ec905d6c29776af331..6e39c20fc4a5716d5069bbf1620f3bc4e964d3b2 100644
--- a/src/gpu/GrPathRendering.h
+++ b/src/gpu/GrPathRendering.h
@@ -9,10 +9,12 @@
 #define GrPathRendering_DEFINED
 
 #include "SkPath.h"
+#include "GrPathRange.h"
 
 class SkStrokeRec;
+class SkDescriptor;
+class SkTypeface;
 class GrPath;
-class GrPathRange;
 class GrGpu;
 
 /**
@@ -60,7 +62,8 @@ public:
     }
 
     virtual GrPath* createPath(const SkPath&, const SkStrokeRec&) = 0;
-    virtual GrPathRange* createPathRange(size_t size, const SkStrokeRec&) = 0;
+    virtual GrPathRange* createPathRange(GrPathRange::PathGenerator*, const SkStrokeRec&) = 0;
+    virtual GrPathRange* createGlyphs(const SkTypeface*, const SkDescriptor*, const SkStrokeRec&) = 0;
     virtual void stencilPath(const GrPath*, SkPath::FillType) = 0;
     virtual void drawPath(const GrPath*, SkPath::FillType) = 0;
     virtual void drawPaths(const GrPathRange*, const uint32_t indices[], int count,