commit 43a9462cd259b1a3c6cc961b28518ba6aac261e9
author reillyg <reillyg@chromium.org> Thu Oct 16 21:59:11 2014
committer Commit bot <commit-bot@chromium.org> Thu Oct 16 21:59:58 2014
tree 1fe9fa13c92324b64be54f509bab00283629d910
parent 3b1773974278b7c66508ef24929f6c702ffbde38

Prompt for granting permission to access USB devices.

extensions::DevicePermissionsPrompt may be implemented by an embedder
of the extensions system to provide a way to prompt the user for
permission to access a set of USB devices. This is expandable to other
device types. Implementations for Chrome using the Views framework
(for Chrome OS, Linux and Windows) and Cocoa (for OS X) are provided
in this change.

Screenshots are attached to bug 420317.

BUG=352720,420317

Review URL: https://codereview.chromium.org/633793002

Cr-Commit-Position: refs/heads/master@{#299983}