Revert of Pre-cache downloads directory path in PathUtils. (patchset #1 id:1 of https://codereview.…

Revert of Pre-cache downloads directory path in PathUtils. (patchset #1 id:1 of https://codereview.chromium.org/1281273003/ )

Reason for revert:
Revert because it breaks new beta. See
https://code.google.com/p/chromium/issues/detail?id=528377

Original issue's description:
> Pre-cache downloads directory path in PathUtils.
>
> When Chrome tabs are swiped away and user starts Chrome again,
> their default downloads directory is requested. This causes a
> StrictMode policy violation since it results in a ~60ms disk
> read. Thus by adding this call to the initial AsyncTask we
> save that time when the directory is requested by native.
>
> This must only be called in the browser process as the sandbox
> processes do not need to make the call nor can they make the
> call(results in NPE).
>
> BUG=508615
>
> Committed: https://crrev.com/4a7568dffab924d3710a68949dca0717bdad3352
> Cr-Commit-Position: refs/heads/master@{#342672}

TBR=yfriedman@google.com,wnwen@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=508615
TBR=acleung@chromium.org

Review URL: https://codereview.chromium.org/1328043002

Cr-Commit-Position: refs/heads/master@{#347518}

[Yaron, 2015-09-08 18:00:37]

yfriedman@chromium.org changed reviewers:
+ yfriedman@chromium.org

[Yaron, 2015-09-08 18:00:38]

lgtm

[Peter Wen, 2015-09-08 18:02:14]

lgtm

[Peter Wen, 2015-09-10 21:54:46]

On 2015/09/08 18:02:14, Peter Wen wrote:
> lgtm

Closing this issue as http://crrev.com/1328043002 landed.