Interactive autofill: Adds footnote view to accept legal documents in the UI.

ui/views/window/dialog_client_view.cc

Index: ui/views/window/dialog_client_view.cc
diff --git a/ui/views/window/dialog_client_view.cc b/ui/views/window/dialog_client_view.cc
index ba1698812e6e3c5b2bfad31c089d5eb218ff3496..2a8064714150be13028d23a9725d944dcf7a5b46 100644
--- a/ui/views/window/dialog_client_view.cc
+++ b/ui/views/window/dialog_client_view.cc
@@ -371,8 +371,8 @@ gfx::Size DialogClientView::GetPreferredSize() {
   }
   prefsize.Enlarge(0, button_height);
 
-  if (footnote_view_) {
-    gfx::Size footnote_size = footnote_view_->GetPreferredSize();
+  if (footnote_view_ && footnote_view_->visible()) {
+    const gfx::Size& footnote_size = footnote_view_->GetPreferredSize();
     prefsize.Enlarge(0, footnote_size.height());
     prefsize.set_width(std::max(prefsize.width(), footnote_size.width()));
   }
@@ -494,15 +494,15 @@ int DialogClientView::GetDialogButtonsAreaHeight() const {
 }
 
 int DialogClientView::GetFootnoteViewHeight() const {
-  return footnote_view_ ? footnote_view_->GetPreferredSize().height() : 0;
+  return footnote_view_ && footnote_view_->visible() ?
+      footnote_view_->GetPreferredSize().height() : 0;
 }
 
 void DialogClientView::LayoutDialogButtons() {
   gfx::Rect lb = GetContentsBounds();
   gfx::Rect extra_bounds;
-  int bottom_y = lb.bottom() - style_params_.button_vedge_margin;
-  if (footnote_view_)
-    bottom_y -= footnote_view_->GetPreferredSize().height();
+  int bottom_y = lb.bottom() - style_params_.button_vedge_margin -
+                 GetFootnoteViewHeight();
 
   int button_height = GetButtonsHeight();
   if (cancel_button_) {