[M53] service worker: Refactor OnNoControllees

[M53] service worker: Refactor OnNoControllees

OnNoControllees doesn't need to unset the flags.
* If |is_uninstalling_| is set, the call to Clear() would unset it.
* If |should_activate_when_ready_| is set, the call to ActivateWaitingVersion() would
unset it. We also change Clear() to unset |should_activate_when_ready_| which
makes sense for any callsite of Clear().

Minor simplification in anticipation of changes for https://crbug.com/616331
Refactoring only; no behavior change.

BUG=616331
Review-Url: https://codereview.chromium.org/2115393002
Cr-Commit-Position: refs/heads/master@{#403650}
(cherry picked from commit 6c74874b9c6969a2afc6f195c96a1a3b15cda890)

Committed: https://chromium.googlesource.com/chromium/src/+/09a50f12f80cb14568479cf33b10d55cdb6a54a2

[falken, 2016-07-21 05:49:57]

Description was changed from

==========
[M53] service worker: Refactor OnNoControllees

OnNoControllees doesn't need to unset the flags.
* If |is_uninstalling_| is set, the call to Clear() would unset it.
* If |should_activate_when_ready_| is set, the call to ActivateWaitingVersion()
would
unset it. We also change Clear() to unset |should_activate_when_ready_| which
makes sense for any callsite of Clear().

Minor simplification in anticipation of changes for https://crbug.com/616331
Refactoring only; no behavior change.

BUG=616331

Review-Url: https://codereview.chromium.org/2115393002
Cr-Commit-Position: refs/heads/master@{#403650}
(cherry picked from commit 6c74874b9c6969a2afc6f195c96a1a3b15cda890)
==========

to

==========
[M53] service worker: Refactor OnNoControllees

OnNoControllees doesn't need to unset the flags.
* If |is_uninstalling_| is set, the call to Clear() would unset it.
* If |should_activate_when_ready_| is set, the call to ActivateWaitingVersion()
would
unset it. We also change Clear() to unset |should_activate_when_ready_| which
makes sense for any callsite of Clear().

Minor simplification in anticipation of changes for https://crbug.com/616331
Refactoring only; no behavior change.

BUG=616331

Review-Url: https://codereview.chromium.org/2115393002
Cr-Commit-Position: refs/heads/master@{#403650}
(cherry picked from commit 6c74874b9c6969a2afc6f195c96a1a3b15cda890)

Committed:
https://chromium.googlesource.com/chromium/src/+/09a50f12f80cb14568479cf33b10...
==========

[falken, 2016-07-21 05:49:59]

Committed patchset #1 (id:1) manually as
09a50f12f80cb14568479cf33b10d55cdb6a54a2.