Use an explicit PID for duplicating Pepper handles rather than the Channel's.

Use an explicit PID for duplicating Pepper handles rather than the Channel's.

When the browser process launches the plugin, it explicitly tells each side the PID of the other side, and we now use this PID for sharing handles. Previously we'd use the PID from the IPC channel.

Using the PID from the IPC channel creates a race condition because the PID isn't set until the "hello" message from the opposite side is processed, which isn't guaranteed at any particular time.

BUG=168222
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=175190

[jschuh, 2013-01-03 22:21:50]

On 2013/01/03 21:53:12, brettw wrote:

lgtm

[commit-bot: I haz the power, 2013-01-04 06:27:48]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/brettw@chromium.org/11722017/4005

[commit-bot: I haz the power, 2013-01-04 06:28:16]

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