Avoid lineTo() duplication in SkPath::dump().

Avoid lineTo() duplication in SkPath::dump().

Currently, SkPath.dump() produces duplicate entries for lineTo():

path.moveTo(0, 0);
path.lineTo(1.00000012f, 0);
path.lineTo(1.00000012f, 0);
path.lineTo(1.00000012f, 1.00000012f);
path.lineTo(1.00000012f, 1.00000012f);
path.lineTo(0, 1.00000012f);
path.lineTo(0, 1.00000012f);
path.lineTo(0, 0);
path.lineTo(0, 0);
path.close();

R=bungeman@google.com

Committed: http://code.google.com/p/skia/source/detail?r=10131

[bungeman-skia, 2013-07-17 21:24:10]

I'm sure someone is depending on it, but lgtm :-)

[commit-bot: I haz the power, 2013-07-17 21:24:45]

CQ is trying da patch. Follow status at
https://skia-tree-status.appspot.com/cq/fmalita@chromium.org/19540004/1

[commit-bot: I haz the power, 2013-07-17 21:39:55]

Change committed as 10131