Fixes bug where we would allow dragging tabs in incognito windows too

chrome/browser/ui/views/tabs/dragged_tab_controller.cc

Index: chrome/browser/ui/views/tabs/dragged_tab_controller.cc
diff --git a/chrome/browser/ui/views/tabs/dragged_tab_controller.cc b/chrome/browser/ui/views/tabs/dragged_tab_controller.cc
index d7e350a2777877f9527117ab44022791d49fbd53..e09065e7799d3312ffc4e26bf542915f878ef77e 100644
--- a/chrome/browser/ui/views/tabs/dragged_tab_controller.cc
+++ b/chrome/browser/ui/views/tabs/dragged_tab_controller.cc
@@ -1021,12 +1021,12 @@ gfx::Point DraggedTabController::GetAttachedTabDragPoint(
   const gfx::Size& tab_size = attached_tab_->bounds().size();
 
   if (attached_tabstrip_->type() == BaseTabStrip::HORIZONTAL_TAB_STRIP) {
-    int max_x = attached_tabstrip_->bounds().right() - tab_size.width();
+    int max_x = attached_tabstrip_->width() - tab_size.width();
     x = std::min(std::max(x, 0), max_x);
     y = 0;
   } else {
     x = SideTabStrip::kTabStripInset;
-    int max_y = attached_tabstrip_->bounds().bottom() - tab_size.height();
+    int max_y = attached_tabstrip_->height() - tab_size.height();
     y = std::min(std::max(y, SideTabStrip::kTabStripInset), max_y);
   }
   return gfx::Point(x, y);