516599 - Exiting private browsing should clear the image cache

Status: RESOLVED DUPLICATE of bug 576621

(Firefox :: Private Browsing, defect)

Description

[Justin Dolske [:Dolske]]

While working on an unrelated test, bholley and I realized that the image cache doesn't seem to get cleared when exiting private browsing (or by Clear Recent History). The image cache is a memory-only cache that isn't readily examined, so this isn't a critical problem, but it ought to be cleared anyway.

It can be easily cleared via imgICache, see clearImageCache() in modules/libpr0n/test/mochitest/imgutils.js for an example.

The image cache does observer a few notifications that might be indirectly fired, but it's probably best to do it directly. We should probably have the Clear Recent History nuke the cache too (or have the usual network cache clear it, so anything clearing "the cache" gets this too).

Comment 1

[Bobby Holley (:bholley)]

Resolving this as a dupe of bug 576621, since that's where I'm posting the patch.