Animated the PathUtils Sample to show path contours

src/utils/SkPathUtils.cpp

 /*
  *  CAUTION: EXPERIMENTAL CODE
  *
  *  This code is not to be used and will not be supported
  *  if it fails on you. DO NOT USE!
  *
  */
 
 #include "SkPathUtils.h"
 
@@ skipping 79 matching lines @@
                       SkPath::kCW_Direction);
     } else if ( GetBit(line, width - 1) ) { // if last pixel on add
         path->addRect(SkRect::MakeXYWH(width - SK_Scalar1, SkIntToScalar(lineIdx),
                                        SK_Scalar1, SK_Scalar1),
                       SkPath::kCW_Direction);
     }
 }
 
 void SkPathUtils::BitsToPath_Path(SkPath* path,
                         const char* bitmap,
-                        int h, int w, int stride) {
+                        int w, int h, int stride) {
     // loop for every line in bitmap
     for (int i = 0; i < h; ++i) {
         // fn ptr handles each line separately
         //l2p_fn(path, &bitmap[i*stride], i, w);
         Line2path_span(path, &bitmap[i*stride], i, w);
     }
-    Simplify(*path, path); // simplify resulting bitmap
+    Simplify(*path, path); // simplify resulting path.
 }
 
 void SkPathUtils::BitsToPath_Region(SkPath* path,
                                const char* bitmap,
-                               int h, int w, int stride) {
+                               int w, int h, int stride) {
     SkRegion region;
 
     // loop for each line
     for (int y = 0; y < h; ++y){
         bool inRun = 0;
         int start = 1;
         const char* line = &bitmap[y * stride];
 
         // loop for each pixel
         for (int i = 0; i < w; ++i) {
@@ skipping 20 matching lines @@
 
         } else if ( GetBit(line,w-1) ) { // if last pixel on add rect
             // add the thing here
             region.op(SkIRect::MakeXYWH(w-1, y, 1, 1),
                       SkRegion::kUnion_Op );
         }
     }
     // convert region to path
     region.getBoundaryPath(path);
 }