Stops javascript alerts and unload dialogs from showing during

chrome/browser/tab_contents/tab_contents_delegate.cc

Index: chrome/browser/tab_contents/tab_contents_delegate.cc
diff --git a/chrome/browser/tab_contents/tab_contents_delegate.cc b/chrome/browser/tab_contents/tab_contents_delegate.cc
index 6c54933723141efae07a5a0effd749586ead0183..28630e3c70e95f8938f67a8783dc27bc8051b823 100644
--- a/chrome/browser/tab_contents/tab_contents_delegate.cc
+++ b/chrome/browser/tab_contents/tab_contents_delegate.cc
@@ -45,6 +45,10 @@ void TabContentsDelegate::ShowHtmlDialog(HtmlDialogUIDelegate* delegate,
                                          gfx::NativeWindow parent_window) {
 }
 
+bool TabContentsDelegate::ShouldSuppressDialogs() {
+  return false;
+}
+
 void TabContentsDelegate::BeforeUnloadFired(TabContents* tab,
                                             bool proceed,
                                             bool* proceed_to_fire_unload) {