Repro steps
1) Navigate to chrome://md-settings/certificates directly from the omnibox.
2) Try to delete a personal certificate, which should open the delete confirmation dialog.
3) Resize the window height.
Expected result: Dialog moves as height changes, such that it is always centered.
Actual result: Dialog does not move.
It gets more interesting.
4) After step 3 above, click the left arrow next to "Manage Certificates"
5) Enter the certificate manager again by clicking "Manage Certificates" in the privacy section.
6) Repeat steps 1-3. This time the dialog responds to window resize!
Initial investigation is showing that the _interestedResizables array at [1] has different contents for the case where it works VS the case where it does not work.
https://code.google.com/p/chromium/codesearch#chromium/src/third_party/polymer/v1_0/components-chromium/iron-resizable-behavior/iron-resizable-behavior-extracted.js&l=82
Comment 1 by dpa...@chromium.org
, Apr 6 2016Summary: Dialogs inside <settings-subpage> don't always respond to window resize. (was: Certificate manager dialogs don't always respond to window resize.)