Merge to M66: Apply ExtensionNavigationThrottle filesystem/blob checks to all frames.

BUG=836858

Change-Id: I34333a72501129fd40b5a9aa6378c9f35f1e7fc2
Reviewed-on: https://chromium-review.googlesource.com/1028511
Reviewed-by: Devlin <rdevlin.cronin@chromium.org>
Reviewed-by: Alex Moshchuk <alexmos@chromium.org>
Reviewed-by: Nick Carter <nick@chromium.org>
Commit-Queue: Charlie Reis <creis@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#553867}(cherry picked from commit 7614790c80996d32a28218f4d1605b0908e9ddf6)
Reviewed-on: https://chromium-review.googlesource.com/1048645
Reviewed-by: Charlie Reis <creis@chromium.org>
Cr-Commit-Position: refs/branch-heads/3359@{#807}
Cr-Branched-From: 66afc5e5d10127546cc4b98b9117aff588b5e66b-refs/heads/master@{#540276}
6 files changed