views: Make view::Views::GetPreferredSize() const.

ui/views/controls/webview/web_dialog_view.cc

Index: ui/views/controls/webview/web_dialog_view.cc
diff --git a/ui/views/controls/webview/web_dialog_view.cc b/ui/views/controls/webview/web_dialog_view.cc
index d6e15f39c266e76e1c508e2b4ed533090166e232..8d612f42d9195e99c79826d63be56c196e4a8595 100644
--- a/ui/views/controls/webview/web_dialog_view.cc
+++ b/ui/views/controls/webview/web_dialog_view.cc
@@ -66,14 +66,14 @@ content::WebContents* WebDialogView::web_contents() {
 ////////////////////////////////////////////////////////////////////////////////
 // WebDialogView, views::View implementation:
 
-gfx::Size WebDialogView::GetPreferredSize() {
+gfx::Size WebDialogView::GetPreferredSize() const {
   gfx::Size out;
   if (delegate_)
     delegate_->GetDialogSize(&out);
   return out;
 }
 
-gfx::Size WebDialogView::GetMinimumSize() {
+gfx::Size WebDialogView::GetMinimumSize() const {
   gfx::Size out;
   if (delegate_)
     delegate_->GetMinimumDialogSize(&out);