Mac: Fix incorrect tab dragging window drawing.

chrome/browser/ui/cocoa/tabs/tab_view.mm

Index: chrome/browser/ui/cocoa/tabs/tab_view.mm
diff --git a/chrome/browser/ui/cocoa/tabs/tab_view.mm b/chrome/browser/ui/cocoa/tabs/tab_view.mm
index bd5b053e29234616eecb871ae3edf81d6198cd21..c8358328159a6197b31bdebd9e484dac9ccebc73 100644
--- a/chrome/browser/ui/cocoa/tabs/tab_view.mm
+++ b/chrome/browser/ui/cocoa/tabs/tab_view.mm
@@ -433,6 +433,11 @@ ui::ThreePartImage* GetStrokeImage(bool active) {
   [super viewDidMoveToWindow];
   if ([self window]) {
     [controller_ updateTitleColor];
+
+    // The new window may have different main window status.
+    // This happens when the view is moved into a TabWindowOverlayWindow for
+    // tab dragging.
+    [self windowDidChangeActive];
   }
 }