Calculate rough approximations for nvpr path sizes

src/gpu/gl/GrGLPathRange.h

Index: src/gpu/gl/GrGLPathRange.h
diff --git a/src/gpu/gl/GrGLPathRange.h b/src/gpu/gl/GrGLPathRange.h
index 927310d651e004424b0f3d23b46d0c264a152e00..8e2df76efb571fcc7d560748fee9613596a18f95 100644
--- a/src/gpu/gl/GrGLPathRange.h
+++ b/src/gpu/gl/GrGLPathRange.h
@@ -26,13 +26,8 @@ public:
     virtual ~GrGLPathRange();
 
     GrGLuint basePathID() const { return fBasePathID; }
-
     virtual void initAt(size_t index, const SkPath&);
-
-    // TODO: Use a better approximation for the individual path sizes.
-    virtual size_t gpuMemorySize() const SK_OVERRIDE {
-        return 100 * fNumDefinedPaths;
-    }
+    virtual size_t gpuMemorySize() const SK_OVERRIDE { return fGpuMemorySize; }
 
 protected:
     virtual void onRelease() SK_OVERRIDE;
@@ -40,7 +35,7 @@ protected:
 
 private:
     GrGLuint fBasePathID;
-    size_t fNumDefinedPaths;
+    size_t fGpuMemorySize;
 
     typedef GrPathRange INHERITED;
 };