Use STLClearObject in URLFetcherCore

Use STLClearObject in URLFetcherCore

URLFetcherCore can be reused for different requests. If it is used for a
chunked upload following a non-chunked upload, we clear the previous
non-chunked upload content by doing |upload_content_|.clear(). However this
might not free up the memory used by |upload_content_|. This CL uses
base::STLClearObject().

BUG=689062
Review-Url: https://codereview.chromium.org/2680493002
Cr-Commit-Position: refs/heads/master@{#448297}
Committed: https://chromium.googlesource.com/chromium/src/+/247c7485836209481c53e865856ec7b8ef81178e

[xunjieli, 2017-02-06 16:19:25]

Patchset #1 (id:1) has been deleted

[xunjieli, 2017-02-06 16:19:49]

xunjieli@chromium.org changed reviewers:
+ bnc@chromium.org

[xunjieli, 2017-02-06 16:19:50]

Bence, PTAL. Thanks!

[xunjieli, 2017-02-06 16:20:00]

The CQ bit was checked by xunjieli@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-02-06 16:20:18]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Bence, 2017-02-06 16:25:57]

LGTM.

[xunjieli, 2017-02-06 16:37:45]

The CQ bit was unchecked by xunjieli@chromium.org

[xunjieli, 2017-02-06 16:37:49]

The CQ bit was checked by xunjieli@chromium.org

[commit-bot: I haz the power, 2017-02-06 16:38:11]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-02-06 17:53:02]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1486399069261120,
"parent_rev": "068e8caba560c0afb9a4dff756486a6a8ba51c0b", "commit_rev":
"247c7485836209481c53e865856ec7b8ef81178e"}

[commit-bot: I haz the power, 2017-02-06 17:53:41]

Description was changed from

==========
Use STLClearObject in URLFetcherCore

URLFetcherCore can be reused for different requests. If it is used for a
chunked upload following a non-chunked upload, we clear the previous
non-chunked upload content by doing |upload_content_|.clear(). However this
might not free up the memory used by |upload_content_|. This CL uses
base::STLClearObject().

BUG=689062
==========

to

==========
Use STLClearObject in URLFetcherCore

URLFetcherCore can be reused for different requests. If it is used for a
chunked upload following a non-chunked upload, we clear the previous
non-chunked upload content by doing |upload_content_|.clear(). However this
might not free up the memory used by |upload_content_|. This CL uses
base::STLClearObject().

BUG=689062

Review-Url: https://codereview.chromium.org/2680493002
Cr-Commit-Position: refs/heads/master@{#448297}
Committed:
https://chromium.googlesource.com/chromium/src/+/247c7485836209481c53e865856e...
==========

[commit-bot: I haz the power, 2017-02-06 17:53:42]

Committed patchset #1 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/247c7485836209481c53e865856e...