The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/dc9f82823179751d15790d2347e1f0e83aaf4b13

commit dc9f82823179751d15790d2347e1f0e83aaf4b13
Author: rouslan <rouslan@chromium.org>
Date: Mon Dec 19 16:23:18 2016

Do not require billing address for canMakePayment().

PaymentRequest.canMakePayment() should return true if user has a payment
app with an instrument or a credit card with valid name and number.

BUG= 674926 

Review-Url: https://codereview.chromium.org/2558993003
Cr-Commit-Position: refs/heads/master@{#439486}

[modify] https://crrev.com/dc9f82823179751d15790d2347e1f0e83aaf4b13/chrome/android/java/src/org/chromium/chrome/browser/payments/AutofillPaymentInstrument.java
[modify] https://crrev.com/dc9f82823179751d15790d2347e1f0e83aaf4b13/chrome/android/java/src/org/chromium/chrome/browser/payments/PaymentRequestImpl.java
[modify] https://crrev.com/dc9f82823179751d15790d2347e1f0e83aaf4b13/chrome/android/javatests/src/org/chromium/chrome/browser/payments/PaymentRequestCanMakePaymentQueryNoCardTest.java
[modify] https://crrev.com/dc9f82823179751d15790d2347e1f0e83aaf4b13/chrome/android/javatests/src/org/chromium/chrome/browser/payments/PaymentRequestCanMakePaymentQueryTest.java
[modify] https://crrev.com/dc9f82823179751d15790d2347e1f0e83aaf4b13/chrome/android/javatests/src/org/chromium/chrome/browser/payments/PaymentRequestCcCanMakePaymentQueryNoCardTest.java
[modify] https://crrev.com/dc9f82823179751d15790d2347e1f0e83aaf4b13/chrome/android/javatests/src/org/chromium/chrome/browser/payments/PaymentRequestCcCanMakePaymentQueryTest.java

Your change meets the bar and is auto-approved for M56 (branch: 2924)

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/dae509e7efb610d6c00d743f7e68fc097dff8024

commit dae509e7efb610d6c00d743f7e68fc097dff8024
Author: Rouslan Solomakhin <rouslan@chromium.org>
Date: Mon Dec 19 18:02:03 2016

[Merge M-56] Do not require billing address for canMakePayment().

PaymentRequest.canMakePayment() should return true if user has a payment
app with an instrument or a credit card with valid name and number.

BUG= 674926 

Review-Url: https://codereview.chromium.org/2558993003
Cr-Commit-Position: refs/heads/master@{#439486}
(cherry picked from commit dc9f82823179751d15790d2347e1f0e83aaf4b13)

Review-Url: https://codereview.chromium.org/2590543002 .
Cr-Commit-Position: refs/branch-heads/2924@{#550}
Cr-Branched-From: 3a87aecc31cd1ffe751dd72c04e5a96a1fc8108a-refs/heads/master@{#433059}

[modify] https://crrev.com/dae509e7efb610d6c00d743f7e68fc097dff8024/chrome/android/java/src/org/chromium/chrome/browser/payments/AutofillPaymentInstrument.java
[modify] https://crrev.com/dae509e7efb610d6c00d743f7e68fc097dff8024/chrome/android/java/src/org/chromium/chrome/browser/payments/PaymentRequestImpl.java
[modify] https://crrev.com/dae509e7efb610d6c00d743f7e68fc097dff8024/chrome/android/javatests/src/org/chromium/chrome/browser/payments/PaymentRequestCanMakePaymentQueryNoCardTest.java
[modify] https://crrev.com/dae509e7efb610d6c00d743f7e68fc097dff8024/chrome/android/javatests/src/org/chromium/chrome/browser/payments/PaymentRequestCanMakePaymentQueryTest.java
[modify] https://crrev.com/dae509e7efb610d6c00d743f7e68fc097dff8024/chrome/android/javatests/src/org/chromium/chrome/browser/payments/PaymentRequestCcCanMakePaymentQueryNoCardTest.java
[modify] https://crrev.com/dae509e7efb610d6c00d743f7e68fc097dff8024/chrome/android/javatests/src/org/chromium/chrome/browser/payments/PaymentRequestCcCanMakePaymentQueryTest.java

FYI, this is in M-56 now.