Always set FetchClientSettingsObject at FrameFetchContext ctor

This CL makes FetchContext's FetchClientSettingsObject always non-null.

Bug: 880027
Change-Id: I44ceb77f98bcbf7ed5f5cd9acf2184f3c2072da0
Reviewed-on: https://chromium-review.googlesource.com/c/1372033
Reviewed-by: Hiroki Nakagawa <nhiroki@chromium.org>
Reviewed-by: Yutaka Hirano <yhirano@chromium.org>
Commit-Queue: Hiroshige Hayashizaki <hiroshige@chromium.org>
Cr-Commit-Position: refs/heads/master@{#617635}
2 files changed