Cache blur mask for rects which can not break into nine-patch

src/core/SkMaskCache.h

Index: src/core/SkMaskCache.h
diff --git a/src/core/SkMaskCache.h b/src/core/SkMaskCache.h
index f98387b2067dd03745ba2eb9ffaf5cc49d56ff5c..fed65932ec188e701fac29166a037460d5f55cfb 100644
--- a/src/core/SkMaskCache.h
+++ b/src/core/SkMaskCache.h
@@ -39,6 +39,15 @@ public:
     static void Add(SkScalar sigma, SkBlurStyle style, SkBlurQuality quality,
                     const SkRect rects[], int count, const SkMask& mask, SkCachedData* data,
                     SkResourceCache* localCache = NULL);
+

[reed1, 2014/12/22 21:38:15]

Why do these take their parameters in a slightly different order from FindAndRef
/ Add?

Can we name them some way to reflect how they are different from FindAndRef /
Add?
e.g. FindAndCopy?

Either way, I think we need some dox to describe what these do, esp. how they
are different.

[qiankun, 2014/12/23 10:54:32]

Modify the name and re-order parameters for FindAndCopy/AddAndCopy API. Add some
comments to point the difference with FindAndRef/Add. 

+    static bool FindCachedRRect(SkMask* mask, SkScalar sigma, SkBlurStyle style,
+                                SkBlurQuality quality, const SkRRect& rrect);
+    static void AddCachedRRect(const SkMask& mask, SkScalar sigma, SkBlurStyle style,
+                               SkBlurQuality quality, const SkRRect& rrect);
+    static bool FindCachedRects(SkMask* mask, SkScalar sigma, SkBlurStyle style,
+                                SkBlurQuality quality, const SkRect rects[], int count);
+    static void AddCachedRects(const SkMask& mask, SkScalar sigma, SkBlurStyle style,
+                               SkBlurQuality quality, const SkRect rects[], int count);
 };
 
 #endif