Clean-up inline members of nested classes (ui/)

Clean-up inline members of nested classes (ui/)

Due to a bug, the Clang-plugin style checker failed to warn about
inline constructors, destructors, non-empty virtual methods, etc.
for nested classes.

The plugin has been fixed, and this patch is part of a clean-up of all
the code that now causes the plugin to issue errors.

BUG=139346
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=150877

[sky, 2012-08-09 16:10:59]

LGTM

[commit-bot: I haz the power, 2012-08-09 17:54:19]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/hans@chromium.org/10831234/1

[commit-bot: I haz the power, 2012-08-09 20:26:02]

Change committed as 150877