Respect quad->nearest_neighbor in SoftwareRenderer::DrawTextureQuad

Respect quad->nearest_neighbor in SoftwareRenderer::DrawTextureQuad

Currently, SoftwareRenderer::DrawTextureQuad ignores
quad->nearest_neighbor (it always uses nearest_neighbor). This leads to
very poor scaling quality when certain content (such as videos) are
scaled. This change causes DrawTextureQuad to use bilinear filtering
unless quad->nearest_neighbor is true. This has some performance cost, but
seemed worth it due to the very noticible quality issues that come with
not filtering.

BUG=458183
Committed: https://crrev.com/9bb374b668ecdc057bed01c658833939b07c48e3
Cr-Commit-Position: refs/heads/master@{#329903}

[ericrk, 2015-05-13 21:06:08]

ericrk@chromium.org changed reviewers:
+ danakj@chromium.org, enne@chromium.org

[ericrk, 2015-05-13 23:40:46]

Patchset #1 (id:1) has been deleted

[enne (OOO), 2015-05-14 17:22:49]

lgtm, thanks for the test!

[ericrk, 2015-05-14 17:45:07]

The CQ bit was checked by ericrk@chromium.org

[commit-bot: I haz the power, 2015-05-14 17:46:42]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1136893005/20001

[commit-bot: I haz the power, 2015-05-14 19:43:23]

Committed patchset #1 (id:20001)

[commit-bot: I haz the power, 2015-05-14 19:45:09]

Patchset 1 (id:??) landed as
https://crrev.com/9bb374b668ecdc057bed01c658833939b07c48e3
Cr-Commit-Position: refs/heads/master@{#329903}