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

chrome/browser/ui/views/apps/glass_app_window_frame_view_win.cc

Index: chrome/browser/ui/views/apps/glass_app_window_frame_view_win.cc
diff --git a/chrome/browser/ui/views/apps/glass_app_window_frame_view_win.cc b/chrome/browser/ui/views/apps/glass_app_window_frame_view_win.cc
index 68d94dc1b516eb256d3a5f1e92d270284a778c36..f93f53bf048547537aeb63da734a1692c67308e7 100644
--- a/chrome/browser/ui/views/apps/glass_app_window_frame_view_win.cc
+++ b/chrome/browser/ui/views/apps/glass_app_window_frame_view_win.cc
@@ -97,7 +97,7 @@ void GlassAppWindowFrameViewWin::GetWindowMask(const gfx::Size& size,
   // We got nothing to say about no window mask.
 }
 
-gfx::Size GlassAppWindowFrameViewWin::GetPreferredSize() {
+gfx::Size GlassAppWindowFrameViewWin::GetPreferredSize() const {
   gfx::Size pref = widget_->client_view()->GetPreferredSize();
   gfx::Rect bounds(0, 0, pref.width(), pref.height());
   return widget_->non_client_view()
@@ -109,7 +109,7 @@ const char* GlassAppWindowFrameViewWin::GetClassName() const {
   return kViewClassName;
 }
 
-gfx::Size GlassAppWindowFrameViewWin::GetMinimumSize() {
+gfx::Size GlassAppWindowFrameViewWin::GetMinimumSize() const {
   gfx::Size min_size = widget_->client_view()->GetMinimumSize();
   gfx::Rect client_bounds = GetBoundsForClientView();
   min_size.Enlarge(0, client_bounds.y());