The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/418d1a8bb6da708ec32b32dcc99bed41acac035f

commit 418d1a8bb6da708ec32b32dcc99bed41acac035f
Author: Mohamed Amir Yosef <mamir@chromium.org>
Date: Mon Jun 12 15:18:06 2017

[NTP::Push] Extract JSON-to-Snippet in Helper



Bug:  732161 
Change-Id: I57dd0dd8029fd83fabdab063040fc5163059afc9
Reviewed-on: https://chromium-review.googlesource.com/530371
Commit-Queue: Mohamed Amir Yosef <mamir@chromium.org>
Reviewed-by: vitaliii <vitaliii@chromium.org>
Reviewed-by: Chris Pickel <sfiera@chromium.org>
Cr-Commit-Position: refs/heads/master@{#478626}
[modify] https://crrev.com/418d1a8bb6da708ec32b32dcc99bed41acac035f/components/ntp_snippets/BUILD.gn
[add] https://crrev.com/418d1a8bb6da708ec32b32dcc99bed41acac035f/components/ntp_snippets/remote/json_to_categories.cc
[add] https://crrev.com/418d1a8bb6da708ec32b32dcc99bed41acac035f/components/ntp_snippets/remote/json_to_categories.h
[modify] https://crrev.com/418d1a8bb6da708ec32b32dcc99bed41acac035f/components/ntp_snippets/remote/remote_suggestions_fetcher.cc
[modify] https://crrev.com/418d1a8bb6da708ec32b32dcc99bed41acac035f/components/ntp_snippets/remote/remote_suggestions_fetcher.h
[modify] https://crrev.com/418d1a8bb6da708ec32b32dcc99bed41acac035f/components/ntp_snippets/remote/remote_suggestions_provider_impl.cc
[modify] https://crrev.com/418d1a8bb6da708ec32b32dcc99bed41acac035f/components/ntp_snippets/remote/remote_suggestions_provider_impl.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/46f95bcb4effb1dcdf32ab3f760072240022cb81

commit 46f95bcb4effb1dcdf32ab3f760072240022cb81
Author: Mohamed Amir Yosef <mamir@chromium.org>
Date: Tue Jun 13 13:20:37 2017

[NTP::Push] Parse pushed content suggestions

Parse the JSON content suggestions pushed via GCM.

Bug:  732161 
Change-Id: Ic12cd8a2687983dc5e698a5a93e20ad6b27b5c43
Reviewed-on: https://chromium-review.googlesource.com/530305
Reviewed-by: Jan Krcal <jkrcal@chromium.org>
Reviewed-by: Chris Pickel <sfiera@chromium.org>
Commit-Queue: Mohamed Amir Yosef <mamir@chromium.org>
Cr-Commit-Position: refs/heads/master@{#478994}
[modify] https://crrev.com/46f95bcb4effb1dcdf32ab3f760072240022cb81/chrome/browser/ntp_snippets/content_suggestions_service_factory.cc
[modify] https://crrev.com/46f95bcb4effb1dcdf32ab3f760072240022cb81/components/ntp_snippets/breaking_news/breaking_news_suggestions_provider.cc
[modify] https://crrev.com/46f95bcb4effb1dcdf32ab3f760072240022cb81/components/ntp_snippets/breaking_news/breaking_news_suggestions_provider.h
[modify] https://crrev.com/46f95bcb4effb1dcdf32ab3f760072240022cb81/components/ntp_snippets/breaking_news/content_suggestions_gcm_app_handler.cc
[modify] https://crrev.com/46f95bcb4effb1dcdf32ab3f760072240022cb81/components/ntp_snippets/breaking_news/content_suggestions_gcm_app_handler.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/4974fdaca1d45b1ac69d35f4dcbf093c4a2ef6c4

commit 4974fdaca1d45b1ac69d35f4dcbf093c4a2ef6c4
Author: Mohamed Amir Yosef <mamir@chromium.org>
Date: Wed Jun 14 15:14:34 2017

[NTP::Push] Display Breaking News

Bug:  732161 
Change-Id: I637be93290144ff06d96655bc788ad1c59cfa463
Reviewed-on: https://chromium-review.googlesource.com/531049
Commit-Queue: Mohamed Amir Yosef <mamir@chromium.org>
Reviewed-by: Chris Pickel <sfiera@chromium.org>
Reviewed-by: Jan Krcal <jkrcal@chromium.org>
Cr-Commit-Position: refs/heads/master@{#479387}
[modify] https://crrev.com/4974fdaca1d45b1ac69d35f4dcbf093c4a2ef6c4/chrome/browser/ntp_snippets/content_suggestions_service_factory.cc
[modify] https://crrev.com/4974fdaca1d45b1ac69d35f4dcbf093c4a2ef6c4/components/ntp_snippets/breaking_news/breaking_news_suggestions_provider.cc
[modify] https://crrev.com/4974fdaca1d45b1ac69d35f4dcbf093c4a2ef6c4/components/ntp_snippets/breaking_news/breaking_news_suggestions_provider.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/aa15e65a732bb7dc391030a03c08844395fd6eff

commit aa15e65a732bb7dc391030a03c08844395fd6eff
Author: Mohamed Amir Yosef <mamir@chromium.org>
Date: Wed Jun 21 11:57:51 2017

[NTP::Push] Store breaking news in a database

Bug:  732161 
Change-Id: Ie27a334e30a537658dd3e579cc11c8f28ed3a83b
Reviewed-on: https://chromium-review.googlesource.com/535562
Commit-Queue: Mohamed Amir Yosef <mamir@chromium.org>
Reviewed-by: vitaliii <vitaliii@chromium.org>
Reviewed-by: Jan Krcal <jkrcal@chromium.org>
Cr-Commit-Position: refs/heads/master@{#481179}
[modify] https://crrev.com/aa15e65a732bb7dc391030a03c08844395fd6eff/chrome/browser/ntp_snippets/content_suggestions_service_factory.cc
[modify] https://crrev.com/aa15e65a732bb7dc391030a03c08844395fd6eff/components/ntp_snippets/breaking_news/breaking_news_suggestions_provider.cc
[modify] https://crrev.com/aa15e65a732bb7dc391030a03c08844395fd6eff/components/ntp_snippets/breaking_news/breaking_news_suggestions_provider.h
[modify] https://crrev.com/aa15e65a732bb7dc391030a03c08844395fd6eff/components/ntp_snippets/breaking_news/content_suggestions_gcm_app_handler.cc
[modify] https://crrev.com/aa15e65a732bb7dc391030a03c08844395fd6eff/components/ntp_snippets/ntp_snippets_constants.cc
[modify] https://crrev.com/aa15e65a732bb7dc391030a03c08844395fd6eff/components/ntp_snippets/ntp_snippets_constants.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/6f3a9364c158989e394d45bb4da14e174f8b321b

commit 6f3a9364c158989e394d45bb4da14e174f8b321b
Author: Mohamed Amir Yosef <mamir@chromium.org>
Date: Wed Jul 05 16:01:40 2017

[NTP::Push] Add BreakingNewsSuggestionsProvider unittest

Bug:  732161 
Change-Id: I75a83766b680d6892c80ef444b622f7ca91c5b92
Reviewed-on: https://chromium-review.googlesource.com/557860
Commit-Queue: Mohamed Amir Yosef <mamir@chromium.org>
Reviewed-by: vitaliii <vitaliii@chromium.org>
Reviewed-by: Jan Krcal <jkrcal@chromium.org>
Cr-Commit-Position: refs/heads/master@{#484288}
[modify] https://crrev.com/6f3a9364c158989e394d45bb4da14e174f8b321b/components/ntp_snippets/BUILD.gn
[modify] https://crrev.com/6f3a9364c158989e394d45bb4da14e174f8b321b/components/ntp_snippets/breaking_news/breaking_news_listener.h
[modify] https://crrev.com/6f3a9364c158989e394d45bb4da14e174f8b321b/components/ntp_snippets/breaking_news/breaking_news_suggestions_provider.h
[add] https://crrev.com/6f3a9364c158989e394d45bb4da14e174f8b321b/components/ntp_snippets/breaking_news/breaking_news_suggestions_provider_unittest.cc

Should this still be targeted at M61? Or is this complete?

It's M63 now.

This bug was basically done while merging the providers.