Revert of Cache IsNonBrowserProcess values, so we only take a loader-lock the first time.

Revert of Cache IsNonBrowserProcess values, so we only take a loader-lock the first time. (patchset #4 id:60001 of https://codereview.chromium.org/1132473003/)

Reason for revert:
Possibly causing mysterious fails on the Win DBG bots:
https://build.chromium.org/p/chromium.webkit/builders/Win7%20%28dbg%29/builds/16344

http://build.chromium.org/p/chromium.win/builders/Win7%20Tests%20%28dbg%29%281%29/builds/37896

Original issue's description:
> Cache IsNonBrowserProcess values, so we only take a loader-lock the first time.
>
> BUG=485656, 477137
>
> Committed: https://crrev.com/78d41b5d4e59dc7d52d7e7d6530fdd0a78b36d33
> Cr-Commit-Position: refs/heads/master@{#329246}

TBR=siggi@chromium.org,grt@chromium.org,csharp@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=485656, 477137
Committed: https://crrev.com/88dc419e9573a08c229dbe4cc73c9b2b0cbd392a
Cr-Commit-Position: refs/heads/master@{#329467}

[Cait (Slow), 2015-05-12 19:55:34]

Created Revert of Cache IsNonBrowserProcess values, so we only take a
loader-lock the first time.

[Dirk Pranke, 2015-05-12 19:56:37]

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

[Dirk Pranke, 2015-05-12 19:56:37]

lgtm

[commit-bot: I haz the power, 2015-05-12 19:57:01]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1134253002/1

[commit-bot: I haz the power, 2015-05-12 19:59:06]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-12 19:59:47]

Patchset 1 (id:??) landed as
https://crrev.com/88dc419e9573a08c229dbe4cc73c9b2b0cbd392a
Cr-Commit-Position: refs/heads/master@{#329467}