Make javascript dialogs into top-level windows.

ui/views/win/hwnd_util_win.cc

Index: ui/views/win/hwnd_util_win.cc
diff --git a/ui/views/win/hwnd_util_win.cc b/ui/views/win/hwnd_util_win.cc
index 1c642e5240299f7957100128a66766d7a36ff332..094c8ab4ce12acfffe6f26528cd132067b5ac56b 100644
--- a/ui/views/win/hwnd_util_win.cc
+++ b/ui/views/win/hwnd_util_win.cc
@@ -25,4 +25,15 @@ HWND HWNDForNativeWindow(gfx::NativeWindow window) {
   return window;
 }
 
+gfx::Rect GetWindowBoundsForClientBounds(View* view,
+                                         const gfx::Rect& client_bounds) {
+  DCHECK(view);
+  HWND hwnd = view->GetWidget()->GetNativeWindow();
+  RECT rect = client_bounds.ToRECT();
+  DWORD style = ::GetWindowLong(hwnd, GWL_STYLE);
+  DWORD ex_style = ::GetWindowLong(hwnd, GWL_EXSTYLE);
+  AdjustWindowRectEx(&rect, style, FALSE, ex_style);
+  return gfx::Rect(rect);
 }
+
+}  // namespace views