Refactor how we handle resources path in Tests.

bench/SkBenchmark.h

Index: bench/SkBenchmark.h
diff --git a/bench/SkBenchmark.h b/bench/SkBenchmark.h
index e86c81b8ec5cdd44824e983d3e0f7690f2dc6627..012d0fd0b0f6ca1164e73e3a61ad83f57dad9b53 100644
--- a/bench/SkBenchmark.h
+++ b/bench/SkBenchmark.h
@@ -102,9 +102,6 @@ public:
         fClearMask = clearMask;
     }
 
-    static void SetResourcePath(const char*);
-    static SkString GetResourcePath();
-
 protected:
     virtual void setupPaint(SkPaint* paint);
 
@@ -122,7 +119,6 @@ private:
     bool    fForceFilter;
     SkTriState::State  fDither;
     uint32_t    fOrMask, fClearMask;
-    static const char* gResourcePath;
 
     typedef SkRefCnt INHERITED;
 };