
Measure viewport after opening dialog to get correct size including scrollbars.

R=robbyw
DELTA=25  (15 added, 8 deleted, 2 changed)


Revision created by MOE tool push_codebase.
MOE_MIGRATION=155002


git-svn-id: 35241bd708fe29f1f6c7a4322d322e99ff93b95e@203 0b95b8e8-c90f-11de-9d4f-f947ee5921c8

johan/closure-library,johan/closure-library,johan/closure-library