Turn on quilt mode in DM.

gm/drrect.cpp

 /*
  * Copyright 2014 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 "SkRRect.h"
 #include "SkPath.h"
 
 class DRRectGM : public skiagm::GM {
 public:
     DRRectGM() {}
 
 protected:
+    virtual uint32_t onGetFlags() const SK_OVERRIDE {
+        return kSkipTiled_Flag;
+    }
+
     virtual SkString onShortName() SK_OVERRIDE {
         return SkString("drrect");
     }
 
     virtual SkISize onISize() SK_OVERRIDE {
         return SkISize::Make(640, 480);
     }
 
     virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
         SkPaint paint;
@@ skipping 32 matching lines @@
                 canvas->restore();
             }
         }
     }
 
 private:
     typedef GM INHERITED;
 };
 
 DEF_GM( return new DRRectGM; )