The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e95311238ceb7ef9db929db6b8c2c2ae686a04da

commit e95311238ceb7ef9db929db6b8c2c2ae686a04da
Author: Jay Civelli <jcivelli@google.com>
Date: Wed Feb 28 19:28:44 2018

Remove the content-length member variable from SaveFileResourceHandler

The content-length related member variables occurring in a few classes
(SaveFileResourceHandler and SaveItem) is not used. Removing it. Also
now passing the correct content-description (it was always empty).
A few minor clean-ups as well.
This work is in preparation of changing that code to use the network
service.

Bug:  816644 
Change-Id: I14f999fc3ce5b0bb77ecf9e1d35311ef7704db8a
Reviewed-on: https://chromium-review.googlesource.com/938386
Commit-Queue: Jay Civelli <jcivelli@chromium.org>
Reviewed-by: Min Qin <qinmin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#539919}
[modify] https://crrev.com/e95311238ceb7ef9db929db6b8c2c2ae686a04da/content/browser/download/save_file.cc
[modify] https://crrev.com/e95311238ceb7ef9db929db6b8c2c2ae686a04da/content/browser/download/save_file.h
[modify] https://crrev.com/e95311238ceb7ef9db929db6b8c2c2ae686a04da/content/browser/download/save_file_manager.cc
[modify] https://crrev.com/e95311238ceb7ef9db929db6b8c2c2ae686a04da/content/browser/download/save_file_manager.h
[modify] https://crrev.com/e95311238ceb7ef9db929db6b8c2c2ae686a04da/content/browser/download/save_file_resource_handler.cc
[modify] https://crrev.com/e95311238ceb7ef9db929db6b8c2c2ae686a04da/content/browser/download/save_file_resource_handler.h
[modify] https://crrev.com/e95311238ceb7ef9db929db6b8c2c2ae686a04da/content/browser/download/save_item.cc
[modify] https://crrev.com/e95311238ceb7ef9db929db6b8c2c2ae686a04da/content/browser/download/save_item.h
[modify] https://crrev.com/e95311238ceb7ef9db929db6b8c2c2ae686a04da/content/browser/download/save_package.cc
[modify] https://crrev.com/e95311238ceb7ef9db929db6b8c2c2ae686a04da/content/browser/download/save_types.cc
[modify] https://crrev.com/e95311238ceb7ef9db929db6b8c2c2ae686a04da/content/browser/download/save_types.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/60a313da6edaa2b94a8a8dafa8501e41bec4eeaf

commit 60a313da6edaa2b94a8a8dafa8501e41bec4eeaf
Author: Jay Civelli <jcivelli@google.com>
Date: Fri Mar 02 21:53:56 2018

Change Save Page to use the network service

Making the Save Page code use the URLLoaderFactory instead of using the
ResourceDispatcherHost directly.
This means the resource downloads are triggered on the UI thread and
download notifications also happen on the UI thread.

Also removing a NOTREACHED in SimpleURLLoader::OnReceiveCachedMetadata
that got hit when downloading some pages and is a valid call that we
can ignore.

Bug:  816644 ,  779210 
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_mojo
Change-Id: I3c4be94b253392ae6860f8c9e3f1e4fbb752b238
Reviewed-on: https://chromium-review.googlesource.com/944906
Commit-Queue: Jay Civelli <jcivelli@chromium.org>
Reviewed-by: Min Qin <qinmin@chromium.org>
Reviewed-by: John Abd-El-Malek <jam@chromium.org>
Cr-Commit-Position: refs/heads/master@{#540645}
[modify] https://crrev.com/60a313da6edaa2b94a8a8dafa8501e41bec4eeaf/content/browser/BUILD.gn
[modify] https://crrev.com/60a313da6edaa2b94a8a8dafa8501e41bec4eeaf/content/browser/download/save_file.h
[modify] https://crrev.com/60a313da6edaa2b94a8a8dafa8501e41bec4eeaf/content/browser/download/save_file_manager.cc
[modify] https://crrev.com/60a313da6edaa2b94a8a8dafa8501e41bec4eeaf/content/browser/download/save_file_manager.h
[delete] https://crrev.com/7f738657cf5049ba6205b56d9b64b8e34405cd30/content/browser/download/save_file_resource_handler.cc
[delete] https://crrev.com/7f738657cf5049ba6205b56d9b64b8e34405cd30/content/browser/download/save_file_resource_handler.h
[modify] https://crrev.com/60a313da6edaa2b94a8a8dafa8501e41bec4eeaf/content/browser/download/save_package.cc
[modify] https://crrev.com/60a313da6edaa2b94a8a8dafa8501e41bec4eeaf/content/browser/download/save_package.h
[modify] https://crrev.com/60a313da6edaa2b94a8a8dafa8501e41bec4eeaf/content/browser/download/save_types.cc
[modify] https://crrev.com/60a313da6edaa2b94a8a8dafa8501e41bec4eeaf/content/browser/download/save_types.h
[modify] https://crrev.com/60a313da6edaa2b94a8a8dafa8501e41bec4eeaf/services/network/public/cpp/simple_url_loader.cc
[modify] https://crrev.com/60a313da6edaa2b94a8a8dafa8501e41bec4eeaf/testing/buildbot/filters/mojo.fyi.network_browser_tests.filter