commit f9bc386d7f73366b45cb85848d27b4343facf45d
author rdevlin.cronin <rdevlin.cronin@chromium.org> Mon Oct 31 17:04:26 2016
committer Commit bot <commit-bot@chromium.org> Mon Oct 31 17:07:58 2016
tree 61003c94206ad6ff2434129b6267a6f5eeba3c24
parent 37af9ea6080ce52e001189255512bd5bfa1c6c45

[Extensions] Limit ExtensionWebUI

The bookmark manager needs a WebUI controller in order to change the
transition type for links. However, right now, we're creating WebUI for
every single extension.

Instead, *only* create WebUI for the bookmark manager.

Note that the ExtensionWebUI class is currently used for both this WebUI
and for chrome url overrides, which are very separate concepts and
should be split up, but I'll save that for a later CL.

BUG=659798

Review-Url: https://codereview.chromium.org/2452773002
Cr-Commit-Position: refs/heads/master@{#428747}