Remove FetchContext::DispatchDidLoadResourceFromMemoryCache

Move the logic to DispatchDidReceiveResponse.

Bug: 914739
Change-Id: I0f45c9b814527ab4d1c903ad1332b5341b9cc853
Reviewed-on: https://chromium-review.googlesource.com/c/1388352
Reviewed-by: Hiroki Nakagawa <nhiroki@chromium.org>
Commit-Queue: Yutaka Hirano <yhirano@chromium.org>
Cr-Commit-Position: refs/heads/master@{#618910}
9 files changed