move common blur types into central header

bench/BlurRoundRectBench.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 "SkBenchmark.h"
 #include "SkBlurMask.h"
 #include "SkBlurMaskFilter.h"
@@ skipping 32 matching lines @@
         SkLayerDrawLooper::Builder looperBuilder;
         {
             SkLayerDrawLooper::LayerInfo info;
             info.fPaintBits = SkLayerDrawLooper::kMaskFilter_Bit
                               | SkLayerDrawLooper::kColorFilter_Bit;
             info.fColorMode = SkXfermode::kSrc_Mode;
             info.fOffset = SkPoint::Make(SkIntToScalar(-1), SkIntToScalar(0));
             info.fPostTranslate = false;
             SkPaint* paint = looperBuilder.addLayerOnTop(info);
             SkMaskFilter* maskFilter = SkBlurMaskFilter::Create(
-                    SkBlurMaskFilter::kNormal_BlurStyle,
+                    kNormal_SkBlurStyle,
                     SkBlurMask::ConvertRadiusToSigma(SK_ScalarHalf),
                     SkBlurMaskFilter::kHighQuality_BlurFlag);
             paint->setMaskFilter(maskFilter)->unref();
             SkColorFilter* colorFilter = SkColorFilter::CreateModeFilter(SK_ColorLTGRAY,
                     SkXfermode::kSrcIn_Mode);
             paint->setColorFilter(colorFilter)->unref();
             paint->setColor(SK_ColorGRAY);
         }
         {
             SkLayerDrawLooper::LayerInfo info;
@@ skipping 20 matching lines @@
     typedef     SkBenchmark INHERITED;
 };
 
 // Create one with dimensions/rounded corners based on the skp
 DEF_BENCH(return new BlurRoundRectBench(600, 5514, 6);)
 // Same radii, much smaller rectangle
 DEF_BENCH(return new BlurRoundRectBench(100, 100, 6);)
 // Other radii options
 DEF_BENCH(return new BlurRoundRectBench(100, 100, 30);)
 DEF_BENCH(return new BlurRoundRectBench(100, 100, 90);)