Revert "efficiently dash very large rectangles and very long lines"

This reverts commit 1ad81981b0027e96ef0cecd78661ab2c22bdc4aa.

Reason for revert: broke chrome layout tests
Original change's description:
> efficiently dash very large rectangles and very long lines
> 
> Speed up dashing when lines and rects are absurdly large.
> 
> Prior to this CL, only horizontal lines were detected.
> 
> The onOnceBeforeDraw changes are there to make debugging easier.
> 
> Also folded in a change to handle dashing of zero length lines.
> 
> R=​reed@google.com, egdaniel@google.com
> Bug: skia:7311
> Change-Id: Ia16fb124c7a78a5cc639e612fae29c879a37da1a
> Reviewed-on: https://skia-review.googlesource.com/84862
> Commit-Queue: Cary Clark <caryclark@skia.org>
> Reviewed-by: Mike Reed <reed@google.com>

TBR=egdaniel@google.com,reed@google.com,caryclark@skia.org

Change-Id: I5e8f04c54486f8cd1a931f6cade92feaaa4a7647
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:7311
Reviewed-on: https://skia-review.googlesource.com/87282
Reviewed-by: Cary Clark <caryclark@google.com>
Commit-Queue: Cary Clark <caryclark@google.com>
4 files changed