[Merge to M55] Optimize the table creation in the Sys Info page of the feedback app

[Merge to M55] Optimize the table creation in the Sys Info page of the feedback app

Removes many bottle necks. Adds spinners to clearly show progress to
the user. Builds the table incrementally to show incremental progress.

TBR=xiyuan@chromium.org
BUG=653968
TEST=manually
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2403503003
Cr-Commit-Position: refs/heads/master@{#424842}
(cherry picked from commit 18870e37b4186d6d68529965cac48023436855ab)

Committed: https://chromium.googlesource.com/chromium/src/+/cc3f19f73e42725b9c46224520854531020e671d

[afakhry, 2016-10-26 21:29:38]

Description was changed from

==========
[Merge to M55] Optimize the table creation in the Sys Info page of the feedback
app

Removes many bottle necks. Adds spinners to clearly show progress to
the user. Builds the table incrementally to show incremental progress.

TBR=xiyuan@chromium.org
BUG=653968
TEST=manually
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2403503003
Cr-Commit-Position: refs/heads/master@{#424842}
(cherry picked from commit 18870e37b4186d6d68529965cac48023436855ab)
==========

to

==========
[Merge to M55] Optimize the table creation in the Sys Info page of the feedback
app

Removes many bottle necks. Adds spinners to clearly show progress to
the user. Builds the table incrementally to show incremental progress.

TBR=xiyuan@chromium.org
BUG=653968
TEST=manually
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2403503003
Cr-Commit-Position: refs/heads/master@{#424842}
(cherry picked from commit 18870e37b4186d6d68529965cac48023436855ab)

Committed:
https://chromium.googlesource.com/chromium/src/+/cc3f19f73e42725b9c4622452085...
==========

[afakhry, 2016-10-26 21:29:40]

Committed patchset #1 (id:1) manually as
cc3f19f73e42725b9c46224520854531020e671d (presubmit successful).