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Issue metadata

Status: Untriaged
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EstimatedDays: ----
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Pri: 3
Type: Bug

Blocking:
issue 807640



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Consider *not* deferring load in SubframeNavigationFilteringThrottle for ad tagging

Project Member Reported by csharrison@chromium.org, Mar 9 2018

Issue description

Ad tagging does not require that we block to tag the subframe navigation. We could just wait at WillProcessResponse time for the checks to finish.
 
Components: UI>Browser>AdFilter
This change should be relatively easy to make, except for the fact that we normally fail the navigation with BLOCK_REQUEST_AND_COLLAPSE. This cannot be returned from WillProcessResponse since the request has already gone out and received a response.

We may be able to change this to CANCEL_AND_COLLAPSE and do it at WillProcessResponse time.

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