Support multiple PDF rendering backends in the GM

gm/mixedxfermodes.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 "SkBitmap.h"
 #include "SkRandom.h"
@@ skipping 107 matching lines @@
             p.setXfermodeMode(mode);
             canvas->save();
             canvas->translate(dx, dy);
             canvas->scale(s, s);
             canvas->rotate(r);
             this->drawShape(canvas, p, &random);
             canvas->restore();
         }
     }
 
+    virtual uint32_t onGetFlags() const {
+        // Skip PDF rasterization since rendering this PDF takes forever.
+        return kSkipPDFRasterization_Flag;
+    }
+
 private:
     enum {
         kNumShapes = 100,
     };
     SkAutoTUnref<SkShader> fBG;
     SkPath                 fConcavePath;
     SkPath                 fConvexPath;
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static GM* MyFactory(void*) { return new MixedXfermodesGM; }
 static GMRegistry reg(MyFactory);
 
 }