Distinguish common and unique names for skiaperf.com.

bench/SKPBench.h

Index: bench/SKPBench.h
diff --git a/bench/SKPBench.h b/bench/SKPBench.h
index 9cc91928204dbb8d4cf3fe2af502bd19d217356f..0b0e008d633b33598cf86b314e84bedb72ce1669 100644
--- a/bench/SKPBench.h
+++ b/bench/SKPBench.h
@@ -21,6 +21,7 @@ public:
 
 protected:
     virtual const char* onGetName() SK_OVERRIDE;
+    virtual const char* onGetUniqueName() SK_OVERRIDE;
     virtual bool isSuitableFor(Backend backend) SK_OVERRIDE;
     virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE;
     virtual SkIPoint onGetSize() SK_OVERRIDE;
@@ -30,6 +31,7 @@ private:
     const SkIRect fClip;
     const SkScalar fScale;
     SkString fName;
+    SkString fUniqueName;
 
     typedef Benchmark INHERITED;
 };