The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/44461dddebd225d5be35ef3e86c4c04cf061fe50

commit 44461dddebd225d5be35ef3e86c4c04cf061fe50
Author: anthonyvd <anthonyvd@chromium.org>
Date: Fri Mar 03 17:45:17 2017

[Web Payments] Wrap each sheet's content view in a scrollable view.

This change wraps the content of each sheet in a ScrollView so that a
scroll bar is displayed when that content is too tall to fit between
the dialog header and footer.

BUG= 697921 

Review-Url: https://codereview.chromium.org/2722183005
Cr-Commit-Position: refs/heads/master@{#454613}

[modify] https://crrev.com/44461dddebd225d5be35ef3e86c4c04cf061fe50/chrome/browser/ui/views/payments/payment_request_sheet_controller.cc
[modify] https://crrev.com/44461dddebd225d5be35ef3e86c4c04cf061fe50/chrome/browser/ui/views/payments/payment_sheet_view_controller.cc

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/87569a5ed05e1e4c04625819bad26ba0a232b0c3

commit 87569a5ed05e1e4c04625819bad26ba0a232b0c3
Author: anthonyvd <anthonyvd@chromium.org>
Date: Wed Mar 29 23:35:51 2017

[Web Payments] Constrain the dialog inner views to parent's width

BUG= 697921 

Review-Url: https://codereview.chromium.org/2782303002
Cr-Commit-Position: refs/heads/master@{#460579}

[modify] https://crrev.com/87569a5ed05e1e4c04625819bad26ba0a232b0c3/chrome/browser/ui/views/payments/payment_request_dialog_view.cc
[modify] https://crrev.com/87569a5ed05e1e4c04625819bad26ba0a232b0c3/chrome/browser/ui/views/payments/payment_request_sheet_controller.cc
[modify] https://crrev.com/87569a5ed05e1e4c04625819bad26ba0a232b0c3/chrome/browser/ui/views/payments/payment_request_views_util.h