Show the drop down menu on the screen the mouse cursor is on

chrome/browser/ui/views/toolbar/toolbar_button.cc

Index: chrome/browser/ui/views/toolbar/toolbar_button.cc
diff --git a/chrome/browser/ui/views/toolbar/toolbar_button.cc b/chrome/browser/ui/views/toolbar/toolbar_button.cc
index e529cf66a34dc5c48c0ac509a6fbabca5db3fb43..c72d6b8d183f1b923b496e20f7ef442a952eff24 100644
--- a/chrome/browser/ui/views/toolbar/toolbar_button.cc
+++ b/chrome/browser/ui/views/toolbar/toolbar_button.cc
@@ -176,9 +176,7 @@ void ToolbarButton::ShowDropDownMenu(ui::MenuSourceType source_type) {
 
   View::ConvertPointToScreen(this, &menu_position);
 
-#if defined(OS_WIN)
-  int left_bound = GetSystemMetrics(SM_XVIRTUALSCREEN);
-#elif defined(OS_CHROMEOS)
+#if defined(OS_CHROMEOS)
   // A window won't overlap between displays on ChromeOS.
   // Use the left bound of the display on which
   // the menu button exists.