Revert of Modify data_reduction_proxy_header to support tamper detection logic. (https://codereview.chromium.org/
387353003/)
Reason for revert:
Causes DataReductionProxyHeadersTest.GetDataReductionProxyHeaderWithFingerprintRemoved to timeout on the bots.
TBR=bengr1@chromium.org, tonyg@chromium.org, bolian@chromium.org, yfriedman@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=381907
Original issue's description:
> 1. Adds action-parsing functionality for data reduction proxy header.
>
> 2. Adds a couple of functions to return different fingerprint value for tamper detection.
>
> 3. Adds a function to remove Chrome-Proxy header's fingerprint from its header values, and return the rest of header values.
>
> 4. Changes HasDataReductionProxyViaHeader to also tell
> whether data reduction proxy Via header occurs at the last
> or not.
>
>
> BUG=381907
>
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=287561
Review URL: https://codereview.chromium.org/
444723003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@287608 0039d316-1c4b-4281-b951-d872f2087c98