harmony: fix sizing on webusb chooser dialog

ui/views/bubble/bubble_dialog_delegate.cc

Index: ui/views/bubble/bubble_dialog_delegate.cc
diff --git a/ui/views/bubble/bubble_dialog_delegate.cc b/ui/views/bubble/bubble_dialog_delegate.cc
index 735a2237bcb536fb0bb272a2fa06b6abff199ae6..c79301f31af25aec49f0151b2c027b8eefdcf1ef 100644
--- a/ui/views/bubble/bubble_dialog_delegate.cc
+++ b/ui/views/bubble/bubble_dialog_delegate.cc
@@ -231,9 +231,10 @@ gfx::Rect BubbleDialogDelegateView::GetBubbleBounds() {
   // The argument rect has its origin at the bubble's arrow anchor point;
   // its size is the preferred size of the bubble's client view (this view).
   bool anchor_minimized = anchor_widget() && anchor_widget()->IsMinimized();
+  gfx::Size size = GetWidget()->client_view()->GetPreferredSize();
+  size.SetToMax(GetMinimumSize());
   return GetBubbleFrameView()->GetUpdatedWindowBounds(
-      GetAnchorRect(), GetWidget()->client_view()->GetPreferredSize(),
-      adjust_if_offscreen_ && !anchor_minimized);
+      GetAnchorRect(), size, adjust_if_offscreen_ && !anchor_minimized);
 }
 
 const gfx::FontList& BubbleDialogDelegateView::GetTitleFontList() const {