Refactor how we handle resources path in Tests.

tests/Test.h

Index: tests/Test.h
diff --git a/tests/Test.h b/tests/Test.h
index 90d072ef6644544feafb3e23e87a2a163e3887c1..fc1890096e8cb6fca8955d7b8c289692d302700a 100644
--- a/tests/Test.h
+++ b/tests/Test.h
@@ -62,9 +62,6 @@ namespace skiatest {
 
         static SkString GetTmpDir();
 
-        static void SetResourcePath(const char*);
-        static SkString GetResourcePath();
-
         virtual bool isGPUTest() const { return false; }
         virtual void setGrContextFactory(GrContextFactory* factory) {}
 
@@ -73,8 +70,6 @@ namespace skiatest {
         virtual void onRun(Reporter*) = 0;
 
     private:
-        static const char* gResourcePath;
-
         Reporter*   fReporter;
         SkString    fName;
         bool        fPassed;