[Android] Add progress bar linear animation option.

[Android] Add progress bar linear animation option.

For page loading time and battery efficiency, it's good to produce fewer
frames. Compared to other smooth animations we already have, linear
animation looks OK with fewer frames as it doesn't spend frames on
smaller increments.

BUG=352839
Committed: https://crrev.com/591b2b8df44a3afce25d6217cc879e26c46588d9
Cr-Commit-Position: refs/heads/master@{#342536}

[Kibeom Kim (inactive), 2015-08-06 20:45:27]

The CQ bit was checked by kkimlabs@chromium.org to run a CQ dry run

[Kibeom Kim (inactive), 2015-08-06 20:45:40]

kkimlabs@chromium.org changed reviewers:
+ dtrainor@chromium.org, tedchoc@chromium.org

[Kibeom Kim (inactive), 2015-08-06 20:45:40]

dtrainor@chromium.org: Please review changes in 

tedchoc@chromium.org: Please review changes in

[commit-bot: I haz the power, 2015-08-06 20:45:57]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1279873003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1279873003/1

[Kibeom Kim (inactive), 2015-08-06 21:00:30]

kkimlabs@chromium.org changed reviewers:
- tedchoc@chromium.org

[commit-bot: I haz the power, 2015-08-06 21:17:30]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-08-06 21:17:31]

Dry run: Try jobs failed on following builders:
  win_chromium_x64_rel_ng on tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_x64_...)

[Ted C, 2015-08-07 23:10:59]

tedchoc@chromium.org changed reviewers:
+ tedchoc@chromium.org

[Ted C, 2015-08-07 23:11:00]

lgtm

https://codereview.chromium.org/1279873003/diff/1/chrome/android/java/src/org...
File
chrome/android/java/src/org/chromium/chrome/browser/widget/ToolbarProgressBar.java
(right):

https://codereview.chromium.org/1279873003/diff/1/chrome/android/java/src/org...
chrome/android/java/src/org/chromium/chrome/browser/widget/ToolbarProgressBar.java:112:
assert animation == null
Maybe just this instead of the two checks?
http://developer.android.com/reference/android/text/TextUtils.html#isEmpty(ja...

[Kibeom Kim (inactive), 2015-08-07 23:35:35]

https://codereview.chromium.org/1279873003/diff/1/chrome/android/java/src/org...
File
chrome/android/java/src/org/chromium/chrome/browser/widget/ToolbarProgressBar.java
(right):

https://codereview.chromium.org/1279873003/diff/1/chrome/android/java/src/org...
chrome/android/java/src/org/chromium/chrome/browser/widget/ToolbarProgressBar.java:112:
assert animation == null
On 2015/08/07 23:11:00, Ted C (OOO till 8.21) wrote:
> Maybe just this instead of the two checks?
>
http://developer.android.com/reference/android/text/TextUtils.html#isEmpty(ja...

Done.

[Kibeom Kim (inactive), 2015-08-07 23:35:40]

The CQ bit was checked by kkimlabs@chromium.org

[Kibeom Kim (inactive), 2015-08-07 23:35:41]

The patchset sent to the CQ was uploaded after l-g-t-m from tedchoc@chromium.org
Link to the patchset: https://codereview.chromium.org/1279873003/#ps20001
(title: "Use TextUtils.isEmpty")

[commit-bot: I haz the power, 2015-08-07 23:36:52]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1279873003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1279873003/20001

[commit-bot: I haz the power, 2015-08-08 01:31:18]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-08-08 01:31:19]

Try jobs failed on following builders:
  mac_chromium_rel_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)

[Kibeom Kim (inactive), 2015-08-08 17:57:35]

The CQ bit was checked by kkimlabs@chromium.org

[commit-bot: I haz the power, 2015-08-08 17:57:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1279873003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1279873003/20001

[commit-bot: I haz the power, 2015-08-08 18:50:27]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-08-08 18:51:20]

Patchset 2 (id:??) landed as
https://crrev.com/591b2b8df44a3afce25d6217cc879e26c46588d9
Cr-Commit-Position: refs/heads/master@{#342536}