Change most uses of Pickle to base::Pickle

Change most uses of Pickle to base::Pickle

There should be no behavior change.

TBR=jschuh (IPC messages)

Committed: https://crrev.com/bd4d71128239a38fa844c42e4110458109a8b135
Cr-Commit-Position: refs/heads/master@{#332552}

[brettw, 2015-06-02 18:05:06]

brettw@chromium.org changed reviewers:
+ sky@chromium.org

[brettw, 2015-06-02 18:05:17]

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

[commit-bot: I haz the power, 2015-06-02 18:08:03]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1154283003/1

[commit-bot: I haz the power, 2015-06-02 18:44:40]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-06-02 18:44:43]

Dry run: Try jobs failed on following builders:
  linux_chromium_compile_dbg_32_ng on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[brettw, 2015-06-02 19:13:58]

The CQ bit was checked by brettw@chromium.org

[commit-bot: I haz the power, 2015-06-02 19:15:05]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1154283003/20001

[commit-bot: I haz the power, 2015-06-02 19:15:08]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-06-02 19:15:11]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[brettw, 2015-06-02 19:17:17]

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

[commit-bot: I haz the power, 2015-06-02 19:18:49]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1154283003/20001

[commit-bot: I haz the power, 2015-06-02 19:45:26]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-06-02 19:45:30]

Dry run: Try jobs failed on following builders:
  win8_chromium_rel on tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win8_chromium_rel...)
  win_chromium_x64_rel_ng on tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_x64_...)

[brettw, 2015-06-02 20:08:52]

The CQ bit was checked by brettw@chromium.org

[commit-bot: I haz the power, 2015-06-02 20:10:07]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1154283003/40001

[commit-bot: I haz the power, 2015-06-02 20:10:10]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-06-02 20:10:20]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[brettw, 2015-06-02 21:22:35]

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

[commit-bot: I haz the power, 2015-06-02 21:24:25]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1154283003/40001

[sky, 2015-06-02 23:13:04]

Rubber stamp LGTM

[commit-bot: I haz the power, 2015-06-03 03:11:46]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-06-03 03:11:47]

Dry run: This issue passed the CQ dry run.

[brettw, 2015-06-03 03:19:37]

The CQ bit was checked by brettw@chromium.org

[commit-bot: I haz the power, 2015-06-03 03:21:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1154283003/40001

[commit-bot: I haz the power, 2015-06-03 03:37:57]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-06-03 03:38:01]

Try jobs failed on following builders:
  chromium_presubmit on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/chromium_presub...)

[brettw, 2015-06-03 04:19:19]

brettw@chromium.org changed reviewers:
+ jschuh@chromium.org

[brettw, 2015-06-03 04:19:37]

TBR jschuh for IPC

[brettw, 2015-06-03 04:19:49]

The CQ bit was checked by brettw@chromium.org

[commit-bot: I haz the power, 2015-06-03 04:20:38]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1154283003/40001

[commit-bot: I haz the power, 2015-06-03 04:29:53]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-06-03 04:30:58]

Patchset 3 (id:??) landed as
https://crrev.com/bd4d71128239a38fa844c42e4110458109a8b135
Cr-Commit-Position: refs/heads/master@{#332552}