Update ComputeBlurredRRectParams to compute all the parameters needed for occluded blurred rrect ni…

include/effects/SkBlurMaskFilter.h

Index: include/effects/SkBlurMaskFilter.h
diff --git a/include/effects/SkBlurMaskFilter.h b/include/effects/SkBlurMaskFilter.h
index 12eec6052f80768f69a0488c100c489aca67463c..dfbae6b689a25ecd64f5a2de4cc7c6731c2ef37f 100644
--- a/include/effects/SkBlurMaskFilter.h
+++ b/include/effects/SkBlurMaskFilter.h
@@ -73,15 +73,27 @@ public:
                                       SkScalar blurRadius);
 #endif
 
-    static bool ComputeBlurredRRectParams(const SkRRect& rrect,
-                                          SkScalar sigma,
+    static const int kMaxDivisions = 6;
+
+    // This method computes all the parameters for drawing a partially occluded nine-patched
+    // blurred rrect mask:
+    //   rrectToDraw - the integerized rrect to draw in the mask
+    //   widthHeight - how large to make the mask (rrectToDraw will be centered in this coord sys)
+    //   rectXs, rectYs - the x & y coordinates of the covering geometry lattice
+    //   texXs, texYs - the texture coordinate at each point in rectXs & rectYs
+    //   numXs, numYs - number of coordinates in the x & y directions
+    //   skipMask - bit mask that contains a 1-bit whenever one of the cells is occluded
+    // It returns true if 'devRRect' is nine-patchable
+    static bool ComputeBlurredRRectParams(const SkRRect& srcRRect, const SkRRect& devRRect,
+                                          const SkRect& occluder,
+                                          SkScalar sigma, SkScalar xformedSigma,
                                           SkRRect* rrectToDraw,
                                           SkISize* widthHeight,
-                                          SkScalar xs[4],
-                                          int* numXs,
-                                          SkScalar ys[4],
-                                          int* numYs);
-
+                                          SkScalar rectXs[kMaxDivisions],
+                                          SkScalar rectYs[kMaxDivisions],
+                                          SkScalar texXs[kMaxDivisions],
+                                          SkScalar texYs[kMaxDivisions],
+                                          int* numXs, int* numYs, uint32_t* skipMask);
 
     SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP()