{CSS,XSL}StyleSheetResource should mark their clients as finished on checkNotify

{CSS,XSL}StyleSheetResource should mark their clients as finished on checkNotify

Before this CL, {CSS,XSL}StyleSheetResource::checkNotify didn't trigger markClientFinished as Resource::checkNotify did.
This CL aligns {CSS,XSL}StyleSheetResource::checkNotify to trigger it properly.

BUG=647151
Review-Url: https://codereview.chromium.org/2353903002
Cr-Commit-Position: refs/heads/master@{#419969}
(cherry picked from commit 3598c8bc9c56409f7c239c377fe6e42786d6aaa0)

Committed: https://chromium.googlesource.com/chromium/src/+/58cdb2e94ed67c3f5655d630fcacf1a26bcd203f

[kouhei (in TOK), 2016-09-23 00:20:28]

Description was changed from

==========
{CSS,XSL}StyleSheetResource should mark their clients as finished on checkNotify

Before this CL, {CSS,XSL}StyleSheetResource::checkNotify didn't trigger
markClientFinished as Resource::checkNotify did.
This CL aligns {CSS,XSL}StyleSheetResource::checkNotify to trigger it properly.

BUG=647151

Review-Url: https://codereview.chromium.org/2353903002
Cr-Commit-Position: refs/heads/master@{#419969}
(cherry picked from commit 3598c8bc9c56409f7c239c377fe6e42786d6aaa0)
==========

to

==========
{CSS,XSL}StyleSheetResource should mark their clients as finished on checkNotify

Before this CL, {CSS,XSL}StyleSheetResource::checkNotify didn't trigger
markClientFinished as Resource::checkNotify did.
This CL aligns {CSS,XSL}StyleSheetResource::checkNotify to trigger it properly.

BUG=647151

Review-Url: https://codereview.chromium.org/2353903002
Cr-Commit-Position: refs/heads/master@{#419969}
(cherry picked from commit 3598c8bc9c56409f7c239c377fe6e42786d6aaa0)

Committed:
https://chromium.googlesource.com/chromium/src/+/58cdb2e94ed67c3f5655d630fcac...
==========

[kouhei (in TOK), 2016-09-23 00:20:31]

Committed patchset #1 (id:1) manually as
58cdb2e94ed67c3f5655d630fcacf1a26bcd203f (tree was closed).