Turn on quilt mode in DM.

gm/pictureshader.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 "SkBitmap.h"
@@ skipping 40 matching lines @@
                                                                    kTileConfigs[i].tmx,
                                                                    kTileConfigs[i].tmy));
 
             fBitmapShaders[i].reset(SkShader::CreateBitmapShader(bm,
                                                                  kTileConfigs[i].tmx,
                                                                  kTileConfigs[i].tmy));
         }
     }
 
 protected:
+    virtual uint32_t onGetFlags() const SK_OVERRIDE {
+        return kSkipTiled_Flag;
+    }
+
     virtual SkString onShortName() SK_OVERRIDE {
         return SkString("pictureshader");
     }
 
     virtual SkISize onISize() SK_OVERRIDE {
         return SkISize::Make(1400, 1250);
     }
 
     virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
         this->drawSceneColumn(canvas, SkPoint::Make(0, 0), 1, 1, 0);
@@ skipping 87 matching lines @@
     SkScalar    fSceneSize;
 
     SkAutoTUnref<SkShader> fPictureShaders[SK_ARRAY_COUNT(kTileConfigs)];
     SkAutoTUnref<SkShader> fBitmapShaders[SK_ARRAY_COUNT(kTileConfigs)];
 
     typedef GM INHERITED;
 };
 
 DEF_GM( return SkNEW_ARGS(PictureShaderGM, (50, 100)); )
 }