tree f00138de9091031ecbb929f6800b080be8f7c02e
parent d1c53aae59ee44377be8bc0cc15e54d46aa530ce
author junov@chromium.org <junov@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> 1361990116 +0000
committer junov@chromium.org <junov@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> 1361990116 +0000

Change SkTileGride geometry calculations to match the Chromium compositor.

This patch changes the semantics of tileWidth/Height to include the border region, and
uses an offset to take into account the fact that there is no outer border for outer
tiles. This patch also fixes a previous bug where the right column and bottom row were
considered to be included in bounds that are expressed as an SkIRect.

Companion Chromium CL required for roll: https://codereview.chromium.org/12221077/

TEST=TileGrid unit test
Review URL: https://codereview.appspot.com/7350050

git-svn-id: http://skia.googlecode.com/svn/trunk@7885 2bbb7eff-a529-9590-31e7-b0007b416f81