Change zoom presets to be more useful.

Change zoom presets to be more useful.

Device pixel ratio at 1.25 and 1.5 device scale factors are problematic
for existing zoom levels. In particular there was no 80% zoom level that
allowed users with 1.25 set to achieve a dpr of 1 (i.e. equivalent to
no zoom or dsf). Also 1/3 and 2/3 were set to 0.333 and 0.666 instead of
their more precise representations, which caused the math to be slightly
off when using those (especially important for 1.5 dsf, because 2/3 is
needed to achieve a dpr of 1). This patch fixes both of these issues.

R=dbeam@chromium.org
BUG=632323
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Committed: https://crrev.com/9924b8460b425396e9ca518775da1d013b69cdff
Cr-Commit-Position: refs/heads/master@{#413494}

[Bret, 2016-08-19 21:39:40]

Description was changed from

==========
Change zoom presets to be more useful.

Device pixel ratio at 1.25 and 1.5 device scale factors are problematic
for existing zoom levels. In particular there was no 80% zoom level that
allowed users with 1.25 set to achieve a dpr of 1 (i.e. equivalent to
no zoom or dsf). Also 1/3 and 2/3 were set to 0.333 and 0.666 instead of
their more precise representations, which caused the math to be slightly
off when using those (especially important for 1.5 dsf, because 2/3 is
needed to achieve a dpr of 1). This patch fixes both of these issues.

R=dbeam@chromium.org
BUG=632323
==========

to

==========
Change zoom presets to be more useful.

Device pixel ratio at 1.25 and 1.5 device scale factors are problematic
for existing zoom levels. In particular there was no 80% zoom level that
allowed users with 1.25 set to achieve a dpr of 1 (i.e. equivalent to
no zoom or dsf). Also 1/3 and 2/3 were set to 0.333 and 0.666 instead of
their more precise representations, which caused the math to be slightly
off when using those (especially important for 1.5 dsf, because 2/3 is
needed to achieve a dpr of 1). This patch fixes both of these issues.

R=dbeam@chromium.org
BUG=632323
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation
==========

[Bret, 2016-08-19 21:42:03]

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

[commit-bot: I haz the power, 2016-08-19 21:43:23]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Dan Beam, 2016-08-20 01:33:42]

ehh seems legit to me lgtm

[commit-bot: I haz the power, 2016-08-20 01:51:36]

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

[commit-bot: I haz the power, 2016-08-20 01:51:37]

Dry run: Try jobs failed on following builders:
  linux_android_rel_ng on master.tryserver.chromium.android (JOB_FAILED,
https://build.chromium.org/p/tryserver.chromium.android/builders/linux_androi...)

[wjmaclean, 2016-08-22 16:46:51]

On 2016/08/20 01:33:42, Dan Beam wrote:
> ehh seems legit to me lgtm

Seems ok ... I can't imagine there would be anywhere in the code where adding
the extra level should be a problem. lgtm

[Bret, 2016-08-22 17:36:01]

The CQ bit was checked by bsep@chromium.org

[commit-bot: I haz the power, 2016-08-22 17:36:44]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-08-22 18:57:30]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-22 19:04:03]

Description was changed from

==========
Change zoom presets to be more useful.

Device pixel ratio at 1.25 and 1.5 device scale factors are problematic
for existing zoom levels. In particular there was no 80% zoom level that
allowed users with 1.25 set to achieve a dpr of 1 (i.e. equivalent to
no zoom or dsf). Also 1/3 and 2/3 were set to 0.333 and 0.666 instead of
their more precise representations, which caused the math to be slightly
off when using those (especially important for 1.5 dsf, because 2/3 is
needed to achieve a dpr of 1). This patch fixes both of these issues.

R=dbeam@chromium.org
BUG=632323
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation
==========

to

==========
Change zoom presets to be more useful.

Device pixel ratio at 1.25 and 1.5 device scale factors are problematic
for existing zoom levels. In particular there was no 80% zoom level that
allowed users with 1.25 set to achieve a dpr of 1 (i.e. equivalent to
no zoom or dsf). Also 1/3 and 2/3 were set to 0.333 and 0.666 instead of
their more precise representations, which caused the math to be slightly
off when using those (especially important for 1.5 dsf, because 2/3 is
needed to achieve a dpr of 1). This patch fixes both of these issues.

R=dbeam@chromium.org
BUG=632323
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Committed: https://crrev.com/9924b8460b425396e9ca518775da1d013b69cdff
Cr-Commit-Position: refs/heads/master@{#413494}
==========

[commit-bot: I haz the power, 2016-08-22 19:04:03]

Patchset 1 (id:??) landed as
https://crrev.com/9924b8460b425396e9ca518775da1d013b69cdff
Cr-Commit-Position: refs/heads/master@{#413494}