[Material][Mac] Fix for bubble decoration text in dark theme

chrome/browser/ui/cocoa/location_bar/bubble_decoration.mm

Index: chrome/browser/ui/cocoa/location_bar/bubble_decoration.mm
diff --git a/chrome/browser/ui/cocoa/location_bar/bubble_decoration.mm b/chrome/browser/ui/cocoa/location_bar/bubble_decoration.mm
index 29cf54ce7598ee42854f2400ab1cbffe575a594d..36a6f0f39f22f0d5586fd7df7ac8e149284e5c85 100644
--- a/chrome/browser/ui/cocoa/location_bar/bubble_decoration.mm
+++ b/chrome/browser/ui/cocoa/location_bar/bubble_decoration.mm
@@ -123,7 +123,7 @@ void BubbleDecoration::DrawInFrame(NSRect frame, NSView* control_view) {
     [line lineToPoint:NSMakePoint(NSMaxX(decoration_frame) - DividerPadding(),
                                   NSMaxY(decoration_frame))];
 
-    bool in_dark_mode = [[control_view window] hasDarkTheme];
+    bool in_dark_mode = [[control_view window] inIncognitoModeWithSystemTheme];
     [GetDividerColor(in_dark_mode) set];
     [line stroke];