Reland: ServiceWorker: Support includeUncontrolled option in clients.matchAll() (1/2, chromium)

Reland: ServiceWorker: Support includeUncontrolled option in clients.matchAll() (1/2, chromium)

* Add SWContextCore::GetProviderHostByClientID() method
* Add SWContextCore::GetProviderHostIterator() which takes predicate
* Make ServiceWorkerVersion::OnGetClients return uncontrolled host when
* specified
* Make ServiceWorkerVersion::On{PostMessage,Focus} work for uncontrolled
* hosts
  (i.e. now ServiceWorker can have clients that are not controlled by it)

Original review: https://codereview.chromium.org/1007133002/
(No changes since then)

Spec links:
https://slightlyoff.github.io/ServiceWorker/spec/service_worker/#serviceworker-client-query-options-dictionary
https://slightlyoff.github.io/ServiceWorker/spec/service_worker/#clients-getall

1/2: THIS PATCH
2/2: blink patch (layout tests will be added here)

BUG=455241
TEST=ServiceWorkerContextTest.GetProviderHostIterator
TEST=layout tests will be added later
TBR=nhiroki

Committed: https://crrev.com/f996ee9f110c214eb78e88ea612ea590c609cae8
Cr-Commit-Position: refs/heads/master@{#321773}

[kinuko, 2015-03-23 13:47:11]

(No changes since https://codereview.chromium.org/1007133002/)

[kinuko, 2015-03-23 13:47:16]

The CQ bit was checked by kinuko@chromium.org

[commit-bot: I haz the power, 2015-03-23 13:47:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1025453004/1

[commit-bot: I haz the power, 2015-03-23 14:44:16]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-23 14:44:50]

Patchset 1 (id:??) landed as
https://crrev.com/f996ee9f110c214eb78e88ea612ea590c609cae8
Cr-Commit-Position: refs/heads/master@{#321773}