Clear out some minor TODOs.

BUG=none

Review URL: https://codereview.chromium.org/1047063002

Cr-Commit-Position: refs/heads/master@{#322959}
void AutofillDialogViews::SectionContainer::SetActive(bool active) {
  bool is_active = active && proxy_button_->visible();
   if (is_active == !!background())
     return;
 
  set_background(
      is_active ? views::Background::CreateSolidBackground(kLightShadingColor)
                : NULL);
   SchedulePaint();
 }

void AutofillDialogViews::SectionContainer::SetActive(bool active) {
  bool is_active = active && proxy_button_->visible();
   if (is_active == !!background())
     return;
 
  set_background(is_active ?
      views::Background::CreateSolidBackground(kShadingColor) :
      NULL);
   SchedulePaint();
 }
