Apply View::set_preferred_size in some more places.

components/constrained_window/constrained_window_views_unittest.cc

Index: components/constrained_window/constrained_window_views_unittest.cc
diff --git a/components/constrained_window/constrained_window_views_unittest.cc b/components/constrained_window/constrained_window_views_unittest.cc
index b0c98d3f4d18e52ddf03c5ff264cd69fd0406086..85a2d73edf10819965093628acbe74bd698a29b8 100644
--- a/components/constrained_window/constrained_window_views_unittest.cc
+++ b/components/constrained_window/constrained_window_views_unittest.cc
@@ -32,22 +32,16 @@ class DialogContents : public views::DialogDelegateView {
   DialogContents() {}
   ~DialogContents() override {}
 
-  void set_preferred_size(const gfx::Size& preferred_size) {
-    preferred_size_ = preferred_size;
-  }
-
   void set_modal_type(ui::ModalType modal_type) { modal_type_ = modal_type; }
 
   // DialogDelegateView:
   views::View* GetContentsView() override { return this; }
-  gfx::Size GetPreferredSize() const override { return preferred_size_; }
   gfx::Size GetMinimumSize() const override { return gfx::Size(); }
 
   // WidgetDelegate:
   ui::ModalType GetModalType() const override { return modal_type_; }
 
  private:
-  gfx::Size preferred_size_;
   ui::ModalType modal_type_ = ui::MODAL_TYPE_NONE;
 
   DISALLOW_COPY_AND_ASSIGN(DialogContents);