[DevTools] Move v8-related instrumentation from agents to InspectorSession.

[DevTools] Move v8-related instrumentation from agents to InspectorSession.

Added V8InspectorSessionClient which gets notified when instrumentation
should start and stop.

BUG=590878, 580337
Committed: https://crrev.com/821ac29a26b665d65f674d6ccf88590ad91c5806
Cr-Commit-Position: refs/heads/master@{#389556}

[dgozman, 2016-04-22 23:50:16]

dgozman@chromium.org changed reviewers:
+ pfeldman@chromium.org

[dgozman, 2016-04-22 23:50:16]

Could you please take a look?

[pfeldman, 2016-04-23 02:32:15]

lgtm

[dgozman, 2016-04-24 01:06:27]

The CQ bit was checked by dgozman@chromium.org

[commit-bot: I haz the power, 2016-04-24 01:06:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1907663005/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1907663005/20001

[commit-bot: I haz the power, 2016-04-24 02:47:25]

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

[commit-bot: I haz the power, 2016-04-24 02:47:26]

Try jobs failed on following builders:
  linux_chromium_asan_rel_ng on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[dgozman, 2016-04-25 19:17:36]

The CQ bit was checked by dgozman@chromium.org

[dgozman, 2016-04-25 19:17:36]

The patchset sent to the CQ was uploaded after l-g-t-m from
pfeldman@chromium.org
Link to the patchset: https://codereview.chromium.org/1907663005/#ps40001
(title: "profiler agent restore starts instrumenting")

[commit-bot: I haz the power, 2016-04-25 19:17:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1907663005/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1907663005/40001

[commit-bot: I haz the power, 2016-04-25 20:42:22]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-04-25 20:44:50]

Description was changed from

==========
[DevTools] Move v8-related instrumentation from agents to InspectorSession.

Added V8InspectorSessionClient which gets notified when instrumentation
should start and stop.

BUG=590878,580337
==========

to

==========
[DevTools] Move v8-related instrumentation from agents to InspectorSession.

Added V8InspectorSessionClient which gets notified when instrumentation
should start and stop.

BUG=590878,580337

Committed: https://crrev.com/821ac29a26b665d65f674d6ccf88590ad91c5806
Cr-Commit-Position: refs/heads/master@{#389556}
==========

[commit-bot: I haz the power, 2016-04-25 20:44:51]

Patchset 3 (id:??) landed as
https://crrev.com/821ac29a26b665d65f674d6ccf88590ad91c5806
Cr-Commit-Position: refs/heads/master@{#389556}