The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/5a35f6b6820020254adb7f9ea80f6d5ac4210750

commit 5a35f6b6820020254adb7f9ea80f6d5ac4210750
Author: Jian Li <jianli@chromium.org>
Date: Wed Jun 28 00:17:42 2017

[Offline Prefetch] Use download API to download prefetch archive

Currently only hook up with offline internals page.

BUG= 733869 

Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: Ic8212c1b32d9c64d08a49b8222546bfe25f33bfa
Reviewed-on: https://chromium-review.googlesource.com/537275
Commit-Queue: Jian Li <jianli@chromium.org>
Reviewed-by: Justin DeWitt <dewittj@chromium.org>
Reviewed-by: Demetrios Papadopoulos <dpapad@chromium.org>
Reviewed-by: David Trainor <dtrainor@chromium.org>
Cr-Commit-Position: refs/heads/master@{#482812}
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/chrome/browser/BUILD.gn
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/chrome/browser/download/download_service_factory.cc
[add] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/chrome/browser/offline_pages/prefetch/offline_prefetch_download_client.cc
[add] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/chrome/browser/offline_pages/prefetch/offline_prefetch_download_client.h
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/chrome/browser/offline_pages/prefetch/prefetch_service_factory.cc
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/chrome/browser/resources/offline_pages/offline_internals.html
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/chrome/browser/resources/offline_pages/offline_internals.js
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/chrome/browser/resources/offline_pages/offline_internals_browser_proxy.js
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/chrome/browser/ui/webui/offline/offline_internals_ui_message_handler.cc
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/chrome/browser/ui/webui/offline/offline_internals_ui_message_handler.h
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/components/offline_pages/core/prefetch/BUILD.gn
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/components/offline_pages/core/prefetch/DEPS
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/components/offline_pages/core/prefetch/generate_page_bundle_request.cc
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/components/offline_pages/core/prefetch/get_operation_request.cc
[add] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/components/offline_pages/core/prefetch/prefetch_downloader.cc
[add] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/components/offline_pages/core/prefetch/prefetch_downloader.h
[add] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/components/offline_pages/core/prefetch/prefetch_downloader_unittest.cc
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/components/offline_pages/core/prefetch/prefetch_request_fetcher.cc
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/components/offline_pages/core/prefetch/prefetch_request_fetcher.h
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/components/offline_pages/core/prefetch/prefetch_request_fetcher_unittest.cc
[add] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/components/offline_pages/core/prefetch/prefetch_server_urls.cc
[add] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/components/offline_pages/core/prefetch/prefetch_server_urls.h
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/components/offline_pages/core/prefetch/prefetch_service.h
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/components/offline_pages/core/prefetch/prefetch_service_impl.cc
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/components/offline_pages/core/prefetch/prefetch_service_impl.h
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/components/offline_pages/core/prefetch/prefetch_service_test_taco.cc
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/components/offline_pages/core/prefetch/prefetch_service_test_taco.h
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/components/offline_pages/core/prefetch/prefetch_types.cc
[modify] https://crrev.com/5a35f6b6820020254adb7f9ea80f6d5ac4210750/components/offline_pages/core/prefetch/prefetch_types.h