Revert of Removing blink::prefix (patchset #1 id:1 of https://codereview.chromium.org/1115623002/)
Revert of Removing blink::prefix (patchset #1 id:1 of https://codereview.chromium.org/1115623002/)

Reason for revert:
We can't remove blink:: here.



Original issue's description:
> Removing blink::prefix
> 
> Removing blink::prefix in Source/build/* whereever it is not needed.
> 
> BUG=477256
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=194651

TBR=haraken@chromium.org,a.berwal@samsung.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=477256

Review URL: https://codereview.chromium.org/1115603005

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@194670 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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