Fix size of big, red logout button

This CL fixes the size of the big, red logout button that regressed when
the LabelButton class was switched from Font to FontList.

BUG=343956
TEST=Manual

Review URL: https://codereview.chromium.org/162753007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251836 0039d316-1c4b-4281-b951-d872f2087c98

ash/system/logout_button/logout_button_tray.cc

@@ -82,6 +82,7 @@ class LogoutConfirmationDialogDelegate
 LogoutButton::LogoutButton(views::ButtonListener* listener)
     : views::LabelButton(listener, base::string16()) {
   SetupLabelForTray(label());
+  SetFontList(label()->font_list());
   for (size_t state = 0; state < views::Button::STATE_COUNT; ++state)
     SetTextColor(static_cast<views::Button::ButtonState>(state), SK_ColorWHITE);