[Chrome Home] Avoid restart if experiment enabled after FRE.

[Chrome Home] Avoid restart if experiment enabled after FRE.

When determining if Chrome Home is enabled, check if the native
libraries have been initialized by the time the feature boolean is
first read (i.e. because FRE already happened and init'd the browser
process).  If the libraries have been initialized, also check the
finch flag value to determine if we should show Chrome home.

TEST=1.) Clear data, kill Chrome
     2.) build/android/adb_chrome_public_command_line "--enable-features=ChromeHome"
     3.) Start Chrome and proceed through FRE, see you are in Chrome Home w/o
         restarting.
BUG=731295
Review-Url: https://codereview.chromium.org/2946493002
Cr-Commit-Position: refs/heads/master@{#480191}
Committed: https://chromium.googlesource.com/chromium/src/+/fd3ce8c51b5b17427615582a9566bc0afa3d1907

[Ted C, 2017-06-16 19:59:43]

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

[Ted C, 2017-06-16 19:59:44]

PTAL

[mdjones, 2017-06-16 21:07:13]

lgtm

[Ted C, 2017-06-16 21:09:43]

The CQ bit was checked by tedchoc@chromium.org

[commit-bot: I haz the power, 2017-06-16 21:10:06]

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, 2017-06-16 22:07:08]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1497647383328440, "parent_rev":
"270e22d3713afcb3fec87282e71ec00e394a2e97", "commit_rev":
"fd3ce8c51b5b17427615582a9566bc0afa3d1907"}

[commit-bot: I haz the power, 2017-06-16 22:07:21]

Description was changed from

==========
[Chrome Home] Avoid restart if experiment enabled after FRE.

When determining if Chrome Home is enabled, check if the native
libraries have been initialized by the time the feature boolean is
first read (i.e. because FRE already happened and init'd the browser
process).  If the libraries have been initialized, also check the
finch flag value to determine if we should show Chrome home.

TEST=1.) Clear data, kill Chrome
     2.) build/android/adb_chrome_public_command_line
"--enable-features=ChromeHome"
     3.) Start Chrome and proceed through FRE, see you are in Chrome Home w/o
         restarting.
BUG=731295
==========

to

==========
[Chrome Home] Avoid restart if experiment enabled after FRE.

When determining if Chrome Home is enabled, check if the native
libraries have been initialized by the time the feature boolean is
first read (i.e. because FRE already happened and init'd the browser
process).  If the libraries have been initialized, also check the
finch flag value to determine if we should show Chrome home.

TEST=1.) Clear data, kill Chrome
     2.) build/android/adb_chrome_public_command_line
"--enable-features=ChromeHome"
     3.) Start Chrome and proceed through FRE, see you are in Chrome Home w/o
         restarting.
BUG=731295

Review-Url: https://codereview.chromium.org/2946493002
Cr-Commit-Position: refs/heads/master@{#480191}
Committed:
https://chromium.googlesource.com/chromium/src/+/fd3ce8c51b5b17427615582a9566...
==========

[commit-bot: I haz the power, 2017-06-16 22:07:22]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/fd3ce8c51b5b17427615582a9566...