Receive all messages in PluginObserver from the RenderFrameHost.

Receive all messages in PluginObserver from the RenderFrameHost.

BUG=444203
Committed: https://crrev.com/5ebf3147e3a1e66672354fa0412e3cbf964597bc
Cr-Commit-Position: refs/heads/master@{#324407}

[Bernhard Bauer, 2015-04-08 09:32:04]

bauerb@chromium.org changed reviewers:
+ jam@chromium.org

[Bernhard Bauer, 2015-04-08 09:32:05]

Please review.

(TIL that the browser will happily just swallow unhandled IPC messages :-/ )

[jam, 2015-04-08 15:26:36]

since we're trying to kill RenderView, can you make these use RF routing IDs and
change the browser-side?

[Bernhard Bauer, 2015-04-08 17:49:42]

On 2015/04/08 15:26:36, jam wrote:
> since we're trying to kill RenderView, can you make these use RF routing IDs
and
> change the browser-side?

That's easier. Done!

[jam, 2015-04-08 17:55:28]

lgtm

[Bernhard Bauer, 2015-04-09 08:41:29]

The CQ bit was checked by bauerb@chromium.org

[commit-bot: I haz the power, 2015-04-09 08:41:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1063413002/20001

[commit-bot: I haz the power, 2015-04-09 08:41:46]

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

[commit-bot: I haz the power, 2015-04-09 08:41:46]

CLs for remote refs other than refs/pending/heads/master must contain NOTRY=true
in order for the CQ to process them

[Bernhard Bauer, 2015-04-09 09:31:56]

The CQ bit was checked by bauerb@chromium.org

[Bernhard Bauer, 2015-04-09 09:31:56]

The patchset sent to the CQ was uploaded after l-g-t-m from jam@chromium.org
Link to the patchset: https://codereview.chromium.org/1063413002/#ps40001
(title: "update base")

[commit-bot: I haz the power, 2015-04-09 09:32:04]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1063413002/40001

[commit-bot: I haz the power, 2015-04-09 10:23:21]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-04-09 10:24:11]

Patchset 3 (id:??) landed as
https://crrev.com/5ebf3147e3a1e66672354fa0412e3cbf964597bc
Cr-Commit-Position: refs/heads/master@{#324407}