Give the new font cache GM a name

gm/fontcache.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm.h"
 #include "SkCanvas.h"
 #include "SkGraphics.h"
@@ skipping 30 matching lines @@
     }
 
     virtual ~FontCacheGM() {
         for (size_t i = 0; i < TYPEFACE_COUNT; ++i) {
             SkSafeUnref(fTypefaces[i]);
         }
     }
     
 protected:
     virtual SkString onShortName() SK_OVERRIDE {
-        return fName;
+        return SkString("fontcache");
     }
 
     virtual SkISize onISize() SK_OVERRIDE {
         return SkISize::Make(640, 320);
     }
 
     virtual void onOnceBeforeDraw() SK_OVERRIDE {
         int typefaceCount = 0;
         for (size_t i = 0; i < SK_ARRAY_COUNT(gFamilyNames); ++i) {
             for (size_t j = 0; j < SK_ARRAY_COUNT(gStyles); ++j) {
@@ skipping 41 matching lines @@
         
     }
 
     virtual uint32_t onGetFlags() const SK_OVERRIDE {
         // this GM is meant only for the GPU
         return kGPUOnly_Flag;
     }
 
 private:
     SkTypeface* fTypefaces[TYPEFACE_COUNT];
-    SkString fName;
     typedef GM INHERITED;
 };
 
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM( return SkNEW(FontCacheGM); )