[BitmapFetcher] Added reference to OnFetchComplete url

[BitmapFetcher] Added reference to OnFetchComplete url.

It looks like other uses of GURL pass by const reference.  This call is by const value:
virtual void OnFetchComplete(const GURL url, const SkBitmap* bitmap) = 0;
I suspect this was a mistype.

BUG=458681
Committed: https://crrev.com/8df543e37dc4d2ee46c98bbcf546b683550d4aaf
Cr-Commit-Position: refs/heads/master@{#322833}

[dschuyler, 2015-03-30 17:29:56]

dschuyler@chromium.org changed reviewers:
+ thestig@chromium.org

[groby-ooo-7-16, 2015-03-30 17:57:54]

From the bitmap-fetcher side - yes, that's a typo. Thanks for fixing.

[Lei Zhang, 2015-03-30 18:23:15]

lgtm

[dschuyler, 2015-03-30 18:23:43]

The CQ bit was checked by dschuyler@chromium.org

[commit-bot: I haz the power, 2015-03-30 18:24:01]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1016003004/40001

[commit-bot: I haz the power, 2015-03-30 19:22:46]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-03-30 19:23:16]

Patchset 3 (id:??) landed as
https://crrev.com/8df543e37dc4d2ee46c98bbcf546b683550d4aaf
Cr-Commit-Position: refs/heads/master@{#322833}