[Telemetry] Reduce a websocket connection between telemetry & devtool browser target

[Telemetry] Reduce a websocket connection between telemetry & devtool browser target

Before this, SystemInfoBackend creates it own socket connection with 
devtool browser targe. With this fix, it reuses the browser_inspector_websocket in DevToolsClientBackend (consistent with
tracing_backend & memory_backend)

Review-Url: https://codereview.chromium.org/2904193002
Committed: https://chromium.googlesource.com/external/github.com/catapult-project/catapult/+/02e58de92d78a5d8455a5973ef43b6e7c3cca48b

[nednguyen, 2017-05-26 14:12:31]

Description was changed from

==========
[Telemetry] Reduce a websocket connection between telemetry & devtool browser
target
==========

to

==========
[Telemetry] Reduce a websocket connection between telemetry & devtool browser
target

Before this, SystemInfoBackend creates it own socket connection with 
devtool browser targe. With this fix, it reuses the browser_inspector_websocket
in DevToolsClientBackend (consistent with
tracing_backend & memory_backend)
==========

[nednguyen, 2017-05-26 14:12:31]

nednguyen@google.com changed reviewers:
+ charliea@chromium.org, kbr@chromium.org, perezju@chromium.org

[nednguyen, 2017-05-26 14:12:44]

The CQ bit was checked by nednguyen@google.com to run a CQ dry run

[commit-bot: I haz the power, 2017-05-26 14:12:57]

Dry run: 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, 2017-05-26 14:36:31]

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

[commit-bot: I haz the power, 2017-05-26 14:36:32]

Dry run: This issue passed the CQ dry run.

[perezju, 2017-05-26 14:45:25]

lgtm

[nednguyen, 2017-05-26 16:01:37]

The CQ bit was checked by nednguyen@google.com

[commit-bot: I haz the power, 2017-05-26 16:01:44]

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, 2017-05-26 16:03:34]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1495814497125800, "parent_rev":
"239f08ec63f401050f448ae3ca4cba48606682cf", "commit_rev":
"02e58de92d78a5d8455a5973ef43b6e7c3cca48b"}

[commit-bot: I haz the power, 2017-05-26 16:03:38]

Description was changed from

==========
[Telemetry] Reduce a websocket connection between telemetry & devtool browser
target

Before this, SystemInfoBackend creates it own socket connection with 
devtool browser targe. With this fix, it reuses the browser_inspector_websocket
in DevToolsClientBackend (consistent with
tracing_backend & memory_backend)
==========

to

==========
[Telemetry] Reduce a websocket connection between telemetry & devtool browser
target

Before this, SystemInfoBackend creates it own socket connection with 
devtool browser targe. With this fix, it reuses the browser_inspector_websocket
in DevToolsClientBackend (consistent with
tracing_backend & memory_backend)

Review-Url: https://codereview.chromium.org/2904193002
Committed:
https://chromium.googlesource.com/external/github.com/catapult-project/catapu...
==========

[commit-bot: I haz the power, 2017-05-26 16:03:40]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/github.com/catapult-project/catapu...

[Ken Russell (switch to Gerrit), 2017-05-31 03:18:53]

Thanks after the fact for this cleanup and simplification. I didn't understand
when writing this code that this was possible.

[charliea (OOO until 10-5), 2017-05-31 16:26:26]

lgtm

nice cleanup :-)