tree c3bc3dd73b29302f045ad4d06ad470391878d0df
parent 0444c602b2435a8393a2f56c6503da640db9b485
author Alex Vakulenko <avakulenko@chromium.org> 1432334933 -0700
committer ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> 1432353725 +0000

platform2: Enforce virtual destructors on base classes

There have been a number of memory leak issues due to absence of
virtual destructors on base classes. Swept through the following targets:
buffet, libchromeos, webserver.

For every class defined, I did one of the following three things:

1. If the class is not meant to be derived from, marked it as 'final'.
2. If classes derived from a particular base class are not meant to be
   deleted through the base class, marked the base class's destructor
   as 'protected'.
3. Otherwise made the base class's destructor virtual.

BUG=None
TEST=`FEATURES=test emerge-link libchromeos webserver buffet`

Change-Id: I4d909399896d025c39980c9546b79b145614fc47
Reviewed-on: https://chromium-review.googlesource.com/273000
Trybot-Ready: Alex Vakulenko <avakulenko@chromium.org>
Tested-by: Alex Vakulenko <avakulenko@chromium.org>
Reviewed-by: Vitaly Buka <vitalybuka@chromium.org>
Commit-Queue: Vitaly Buka <vitalybuka@chromium.org>