views: Use ui::MessageBoxFlags::kIsJavascriptAlert where it's appropriate.

chrome/browser/ui/views/simple_message_box_views.cc

Index: chrome/browser/ui/views/simple_message_box_views.cc
diff --git a/chrome/browser/ui/views/simple_message_box_views.cc b/chrome/browser/ui/views/simple_message_box_views.cc
index 6d9c1002fc1dfa1eacd9104fedca2f76c3c5c0e4..b50cc114baff3cba436b8d0d246752ef5d984e7b 100644
--- a/chrome/browser/ui/views/simple_message_box_views.cc
+++ b/chrome/browser/ui/views/simple_message_box_views.cc
@@ -41,12 +41,10 @@ bool ShowYesNoBox(gfx::NativeWindow parent,
 void SimpleMessageBoxViews::ShowErrorBox(gfx::NativeWindow parent_window,
                                          const string16& title,
                                          const string16& message) {
-  int dialog_flags = ui::MessageBoxFlags::kFlagHasMessage |
-      ui::MessageBoxFlags::kFlagHasOKButton;
-
   // This is a reference counted object so it is given an initial increment
   // in the constructor with a corresponding decrement in DeleteDelegate().
-  new SimpleMessageBoxViews(parent_window, dialog_flags, title, message);
+  new SimpleMessageBoxViews(parent_window,
+      ui::MessageBoxFlags::kIsJavascriptAlert, title, message);
 }
 
 bool SimpleMessageBoxViews::ShowYesNoBox(gfx::NativeWindow parent_window,