Update constructors view when switching perspectives

Constructors view is updated whenever allocation or summary perspective is selected.

BUG=277984
R=alph@chromium.org

Review URL: https://codereview.chromium.org/198833008

git-svn-id: svn://svn.chromium.org/blink/trunk@169524 bbb929c8-8fbe-4397-9dbb-9b2b20218538