Remove incorrect deriving of CppVariant from WebNonCopyable.

Remove incorrect deriving of CppVariant from WebNonCopyable.

CppVariant is supposed to be a copyable class and we override the default copy ctor and assignment operator for the same. It is wrongly derived from WebNonCopyable. Remove the incorrect inheritance.

R=jochen

BUG=None

TEST=None; no behavior change;

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=160319

[r.kasibhatla, 2013-10-23 06:02:43]

PTAL.
As per our discussion yesterday, just correcting the CppVariant class only.

[jochen (gone - plz use gerrit), 2013-10-23 07:05:27]

s/unneccessary/incorrect/ :)

lgtm

[r.kasibhatla, 2013-10-23 07:31:43]

On 2013/10/23 07:05:27, jochen wrote:
> s/unneccessary/incorrect/ :)
> 
> lgtm

Done. Corrected the message. Thanks.

[commit-bot: I haz the power, 2013-10-23 07:32:01]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/r.kasibhatla@samsung.com/32943007/1

[commit-bot: I haz the power, 2013-10-23 08:43:06]

Change committed as 160319