clang/win: Make winstorage:: not ambiguous.

clang/win: Make winstorage:: not ambiguous.

stdafx.h declared a global winstorage namespace alias, this file
declared a winstorage namespace alias in an unnamed namespace.
clang correctly points out that

  error(clang): reference to 'winstorage' is ambiguous
  note(clang): candidate found by name lookup is 'winstorage'
  note(clang): candidate found by name lookup is '(anonymous namespace)::winstorage'

Just remove the unneeded duplicate.

BUG=82385
TBR=ananta@chromium.org
NOTRY=true

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=284190

[Nico, 2014-07-18 20:07:27]

The CQ bit was checked by thakis@chromium.org

[commit-bot: I haz the power, 2014-07-18 20:09:54]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/thakis@chromium.org/393083006/1

[commit-bot: I haz the power, 2014-07-18 20:12:38]

Change committed as 284190

[ananta, 2014-07-18 20:23:31]

lgtm