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

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

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=150920

[greggman, 2012-08-09 19:49:47]

lgtm

[commit-bot: I haz the power, 2012-08-09 20:01:35]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/hans@chromium.org/10834248/1

[commit-bot: I haz the power, 2012-08-09 20:33:28]

Try job failure for 10834248-1 (retry) on win for step "compile" (clobber
build).
It's a second try, previously, step "compile" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win&number...

[commit-bot: I haz the power, 2012-08-09 20:45:30]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/hans@chromium.org/10834248/11002

[commit-bot: I haz the power, 2012-08-09 22:31:20]

Change committed as 150920