The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0

commit f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0
Author: Shakti Sahu <shaktisahu@chromium.org>
Date: Wed Sep 20 15:12:46 2017

Implement OfflineContentProvider by offline pages

This CL makes offline pages backend implement OfflineContentProvider.

Details:
1- DownloadUIAdapter implements OfflineContentProvider in native.
The methods for pause/resume/cancel etc are moved from
OfflinePageDownloadBridge to here.
2- DownloadUIAdapter creates OfflineItem instead of DownloadUIItem.
DownloadUIItem is removed. Usages that were replaced include notification
bridge and recent_tabs.
3- OfflinePageDownloadBridge contains only startDownload method.
4- DownloadHistoryAdapter implements the OfflineContentProvider::Observer
instead of OfflinePageDownloadBridge::Observer.
5- pause/resume/cancel/remove are routed to RequestCoordinator right away.

Bug: 730892
Change-Id: I196f1838ab7dc66ae5af3860a4ea69327eab947f
Reviewed-on: https://chromium-review.googlesource.com/527270
Commit-Queue: Shakti Sahu <shaktisahu@chromium.org>
Reviewed-by: Filip Gorski <fgorski@chromium.org>
Reviewed-by: Bernhard Bauer <bauerb@chromium.org>
Reviewed-by: David Trainor <dtrainor@chromium.org>
Cr-Commit-Position: refs/heads/master@{#503144}
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadBroadcastManager.java
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadInfo.java
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadNotificationService.java
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadSnackbarController.java
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadUtils.java
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/android/java/src/org/chromium/chrome/browser/download/ui/BackendItems.java
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/android/java/src/org/chromium/chrome/browser/download/ui/BackendProvider.java
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadHistoryAdapter.java
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadHistoryItemWrapper.java
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadItemGroup.java
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadManagerUi.java
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/android/java/src/org/chromium/chrome/browser/download/ui/LoadingStateDelegate.java
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/android/java/src/org/chromium/chrome/browser/offlinepages/downloads/OfflinePageDownloadBridge.java
[delete] https://crrev.com/5dd6b9b26ba00a4c5d5ddc375181e4c194cabb3f/chrome/android/java/src/org/chromium/chrome/browser/offlinepages/downloads/OfflinePageDownloadItem.java
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/android/java_sources.gni
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/android/javatests/src/org/chromium/chrome/browser/download/DownloadActivityTest.java
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/android/javatests/src/org/chromium/chrome/browser/download/ui/DownloadHistoryAdapterTest.java
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/android/javatests/src/org/chromium/chrome/browser/download/ui/StubbedProvider.java
[delete] https://crrev.com/5dd6b9b26ba00a4c5d5ddc375181e4c194cabb3f/chrome/android/junit/src/org/chromium/chrome/browser/offlinepages/downloads/OfflinePageDownloadBridgeTest.java
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/browser/offline_pages/android/downloads/offline_page_download_bridge.cc
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/browser/offline_pages/android/downloads/offline_page_download_bridge.h
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/browser/offline_pages/android/downloads/offline_page_notification_bridge.cc
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/browser/offline_pages/android/downloads/offline_page_notification_bridge.h
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/chrome/browser/offline_pages/recent_tab_helper.h
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/components/ntp_snippets/offline_pages/recent_tab_suggestions_provider.cc
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/components/ntp_snippets/offline_pages/recent_tab_suggestions_provider.h
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/components/offline_items_collection/core/android/java/src/org/chromium/components/offline_items_collection/ContentId.java
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/components/offline_pages/core/BUILD.gn
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/components/offline_pages/core/DEPS
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/components/offline_pages/core/downloads/BUILD.gn
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/components/offline_pages/core/downloads/download_notifying_observer.cc
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/components/offline_pages/core/downloads/download_notifying_observer.h
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/components/offline_pages/core/downloads/download_notifying_observer_unittest.cc
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/components/offline_pages/core/downloads/download_ui_adapter.cc
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/components/offline_pages/core/downloads/download_ui_adapter.h
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/components/offline_pages/core/downloads/download_ui_adapter_unittest.cc
[delete] https://crrev.com/5dd6b9b26ba00a4c5d5ddc375181e4c194cabb3f/components/offline_pages/core/downloads/download_ui_item.cc
[delete] https://crrev.com/5dd6b9b26ba00a4c5d5ddc375181e4c194cabb3f/components/offline_pages/core/downloads/download_ui_item.h
[add] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/components/offline_pages/core/downloads/offline_item_conversions.cc
[add] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/components/offline_pages/core/downloads/offline_item_conversions.h
[add] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/components/offline_pages/core/downloads/offline_item_conversions_unittest.cc
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/components/offline_pages/core/downloads/offline_page_download_notifier.h
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/components/offline_pages/core/recent_tabs/recent_tabs_ui_adapter_delegate.cc
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/components/offline_pages/core/recent_tabs/recent_tabs_ui_adapter_delegate.h
[modify] https://crrev.com/f93acb779ebcfc8e6e7d4d0ae59e40a82eb792f0/components/offline_pages/core/recent_tabs/recent_tabs_ui_adapter_delegate_unittest.cc