Add a getSelectedText method to the PDF plugin.

Add a getSelectedText method to the PDF plugin.

Committed: https://crrev.com/7c23f3fc46a1e368780b2b6d7e0e2b183d3645d8
Cr-Commit-Position: refs/heads/master@{#297649}

[jam, 2014-10-01 05:03:51]

jam@chromium.org changed reviewers:
+ palmer@chromium.org, tsepez@chromium.org

[jam, 2014-10-01 05:03:52]

Hey guys, any one of your reviews is good enough, just want someone from
security to take a look.

[palmer, 2014-10-01 15:26:37]

lgtm

[jam, 2014-10-01 15:29:24]

The CQ bit was checked by jam@chromium.org

[commit-bot: I haz the power, 2014-10-01 15:30:48]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/617163002/1

[commit-bot: I haz the power, 2014-10-01 15:35:25]

Committed patchset #1 (id:1) as fa56d22330ec92846d6d74dccb6353beb135821a

[commit-bot: I haz the power, 2014-10-01 15:36:07]

Patchset 1 (id:??) landed as
https://crrev.com/7c23f3fc46a1e368780b2b6d7e0e2b183d3645d8
Cr-Commit-Position: refs/heads/master@{#297649}

[raymes, 2014-10-01 17:18:15]

Hey John,

What is this for? With out of process PDF, these synchronous scripting APIs will
be going away and the only way to interact will be using postMessage.
Whatever/whoever uses this will need to change their usage.

Thanks!
Raymes