Optimize CSS box-shadow performance

src/effects/SkBlurMask.h

Index: src/effects/SkBlurMask.h
diff --git a/src/effects/SkBlurMask.h b/src/effects/SkBlurMask.h
index 71f60d91faabf5ab6642803f49660ca180119bd7..8147e4bf3203a34cbc9e13802115e97d6a835639 100644
--- a/src/effects/SkBlurMask.h
+++ b/src/effects/SkBlurMask.h
@@ -9,18 +9,19 @@
 #define SkBlurMask_DEFINED
 
 #include "SkBlurTypes.h"
+#include "SkCachedData.h"
 #include "SkShader.h"
 #include "SkMask.h"
 #include "SkRRect.h"
 
 class SkBlurMask {
 public:
-    static bool BlurRect(SkScalar sigma, SkMask *dst, const SkRect &src, SkBlurStyle,
-                         SkIPoint *margin = NULL,
+    static bool BlurRect(SkScalar sigma, SkMask *dst, SkCachedData** data, const SkRect &src,
+                         SkBlurStyle, SkIPoint *margin = NULL,
                          SkMask::CreateMode createMode =
                                                 SkMask::kComputeBoundsAndRenderImage_CreateMode);
-    static bool BlurRRect(SkScalar sigma, SkMask *dst, const SkRRect &src, SkBlurStyle,
-                         SkIPoint *margin = NULL,
+    static bool BlurRRect(SkScalar sigma, SkMask *dst, SkCachedData** data, const SkRRect &src,
+                         SkBlurStyle, SkIPoint *margin = NULL,
                          SkMask::CreateMode createMode =
                                                 SkMask::kComputeBoundsAndRenderImage_CreateMode);
 
@@ -30,7 +31,7 @@ public:
     // but also being able to predict precisely at what pixels the blurred profile of e.g. a
     // rectangle will lie.
 
-    static bool BoxBlur(SkMask* dst, const SkMask& src,
+    static bool BoxBlur(SkMask* dst, SkCachedData** data, const SkMask& src,
                         SkScalar sigma, SkBlurStyle style, SkBlurQuality quality,
                         SkIPoint* margin = NULL, bool force_quality=false);
 
@@ -76,8 +77,6 @@ public:
     static void ComputeBlurredScanline(uint8_t* pixels, const uint8_t* profile,
                                        unsigned int width, SkScalar sigma);
 
-
-
 };
 
 #endif