The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/6475c17c2d76cb962ea8cb3641ea365cd2a277df

commit 6475c17c2d76cb962ea8cb3641ea365cd2a277df
Author: Tao Bai <michaelbai@chromium.org>
Date: Thu Dec 07 01:55:11 2017

[WebView autofill] Not call cancel when WebView starts

Calling cancel() seems not neccessary when WebView first starts.
this could break the exsiting autofill session when WebView is
only for ads.

Bug:  791182 
Change-Id: I7feb37f930ba1eedcab6cbeb50645d4128656fe8
Reviewed-on: https://chromium-review.googlesource.com/806319
Reviewed-by: Changwan Ryu <changwan@chromium.org>
Commit-Queue: Tao Bai <michaelbai@chromium.org>
Cr-Commit-Position: refs/heads/master@{#522302}
[modify] https://crrev.com/6475c17c2d76cb962ea8cb3641ea365cd2a277df/android_webview/java/src/org/chromium/android_webview/AwAutofillProvider.java
[modify] https://crrev.com/6475c17c2d76cb962ea8cb3641ea365cd2a277df/android_webview/javatests/src/org/chromium/android_webview/test/AwAutofillTest.java

michaelbai@, can you please let me know how to verify this issue manually? and i do see bug http://b/69461853 ( Still in Assigned state )

According to https://stackoverflow.com/questions/48055432/android-autofill-only-working-with-response-from-onfillrequest-but-not-from-auth/48103430?noredirect=1#comment83185817_48103430 , it's not fixed yet

I will only call cancel when autofill session is started.

I think this is only fixed on M65; I tried it with Chrome Beta (64.0.3282.85) and my service (https://github.com/the-felipeal/android-AutofillFramework) and it still failed.

Then I switched to Canary (65.0.3322.0), and it worked.

Yes, it targets on M65.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/8dab4bfae1c73f938124418c30efd28f32c9f1e8

commit 8dab4bfae1c73f938124418c30efd28f32c9f1e8
Author: Tao Bai <michaelbai@chromium.org>
Date: Fri Jan 19 23:44:56 2018

Keep autofill session alive.

Cancel the previous autofill session until the new autofill session
is triggered. We don't cancel the autofill session when WebView
navigates to the new page now.

This should also improve the detection of form submission.

Bug:  791182 
Change-Id: I883b322f921ef29221995681ad07044d35bfb76d
Reviewed-on: https://chromium-review.googlesource.com/876507
Reviewed-by: Changwan Ryu <changwan@chromium.org>
Commit-Queue: Tao Bai <michaelbai@chromium.org>
Cr-Commit-Position: refs/heads/master@{#530660}
[modify] https://crrev.com/8dab4bfae1c73f938124418c30efd28f32c9f1e8/android_webview/java/src/org/chromium/android_webview/AwAutofillProvider.java
[modify] https://crrev.com/8dab4bfae1c73f938124418c30efd28f32c9f1e8/android_webview/javatests/src/org/chromium/android_webview/test/AwAutofillTest.java

Your change meets the bar and is auto-approved for M65. Please go ahead and merge the CL to branch 3325 manually. Please contact milestone owner if you have questions.
Owners: cmasso@(Android), cmasso@(iOS), bhthompson@(ChromeOS), govind@(Desktop)

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ac6483b070067994a64b42bf9402e9293e246439

commit ac6483b070067994a64b42bf9402e9293e246439
Author: Tao Bai <michaelbai@chromium.org>
Date: Thu Jan 25 22:45:23 2018

Keep autofill session alive.

Cancel the previous autofill session until the new autofill session
is triggered. We don't cancel the autofill session when WebView
navigates to the new page now.

This should also improve the detection of form submission.

Bug:  791182 
Change-Id: I883b322f921ef29221995681ad07044d35bfb76d
Reviewed-on: https://chromium-review.googlesource.com/876507
Reviewed-by: Changwan Ryu <changwan@chromium.org>
Commit-Queue: Tao Bai <michaelbai@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#530660}(cherry picked from commit 8dab4bfae1c73f938124418c30efd28f32c9f1e8)
Reviewed-on: https://chromium-review.googlesource.com/886827
Reviewed-by: Tao Bai <michaelbai@chromium.org>
Cr-Commit-Position: refs/branch-heads/3325@{#102}
Cr-Branched-From: bc084a8b5afa3744a74927344e304c02ae54189f-refs/heads/master@{#530369}
[modify] https://crrev.com/ac6483b070067994a64b42bf9402e9293e246439/android_webview/java/src/org/chromium/android_webview/AwAutofillProvider.java
[modify] https://crrev.com/ac6483b070067994a64b42bf9402e9293e246439/android_webview/javatests/src/org/chromium/android_webview/test/AwAutofillTest.java

there could be side effect that some Autofill features won't work correctly, for the fix itself, QA have no way to verify it.

marking verified as per comment#14