request review: fix issue 2821 and 6132

chrome/views/native_control.cc

Index: chrome/views/native_control.cc
===================================================================
--- chrome/views/native_control.cc	(revision 8587)
+++ chrome/views/native_control.cc	(working copy)
@@ -340,6 +340,17 @@
   return ex_style;
 }
 
+DWORD NativeControl::GetAdditionalRTLStyle() const {
+  // If the UI for the view is mirrored, we should make sure we add the
+  // extended window style for a right-to-left layout so the subclass creates
+  // a mirrored HWND for the underlying control.
+  DWORD ex_style = 0;
+  if (UILayoutIsRightToLeft())
+    ex_style |= l10n_util::GetExtendedTooltipStyles();
+
+  return ex_style;
+}
+
 // static
 LRESULT CALLBACK NativeControl::NativeControlWndProc(HWND window, UINT message,
                                                      WPARAM w_param,