Revert of Use <(DEPTH) instead of <(PRODUCT_DIR)/../../ for sanitizer blacklist paths. (patchset #2 id:20001 of https://codereview.chromium.org/633333003/)

Reason for revert:
This broke Windows bots, see http://build.chromium.org/p/chromium.webkit/builders/WebKit%20Win%20x64%20Builder/builds/22954/steps/runhooks/logs/stdio
There is no pwd command on windows.

Original issue's description:
> Use <(DEPTH) instead of <(PRODUCT_DIR)/../../ for sanitizer blacklist paths.
>
> It's not correct to assume that the build directory is two levels below src/.
>
> BUG=427202
> [email protected]
> NOTRY=true
>
> Committed: https://crrev.com/dcb216595d483246a0979849f44a993f4d432c7f
> Cr-Commit-Position: refs/heads/master@{#301379}

[email protected],[email protected]
NOTREECHECKS=true
NOTRY=true
BUG=427202

Review URL: https://codereview.chromium.org/680913004

Cr-Commit-Position: refs/heads/master@{#301382}
1 file changed