cc: Add ReverseSpiralDifferenceIterator.
commit71f7f0a6516e22456a396a02fcdd1920f7f2aa0e
authorvmpstr <vmpstr@chromium.org>
Sat, 18 Oct 2014 22:04:50 +0000 (18 15:04 -0700)
committerCommit bot <commit-bot@chromium.org>
Sat, 18 Oct 2014 22:05:16 +0000 (18 22:05 +0000)
tree8e228fa3d17a64d73f45c9026b446451fa5ab2f3
parentf6dc65fc7c88b6426cbf2f9b3c853aaa2839f83f
cc: Add ReverseSpiralDifferenceIterator.

This patch adds an iterator similar to spiral difference iterator,
except that it iterates the indecies in reverse order. This is needed
for a fast eviction iterator.

R=danakj, enne

Review URL: https://codereview.chromium.org/645173004

Cr-Commit-Position: refs/heads/master@{#300221}
cc/base/tiling_data.cc
cc/base/tiling_data.h
cc/base/tiling_data_unittest.cc