Fix HandleJavaScriptDialog.

chrome/browser/ui/javascript_dialogs/javascript_dialog.h

Index: chrome/browser/ui/javascript_dialogs/javascript_dialog.h
diff --git a/chrome/browser/ui/javascript_dialogs/javascript_dialog.h b/chrome/browser/ui/javascript_dialogs/javascript_dialog.h
index 877e0ce67de658691cc4a9bd12d62b726d82cafe..684f5501d25cc39be68eee78962fafdb685d0c58 100644
--- a/chrome/browser/ui/javascript_dialogs/javascript_dialog.h
+++ b/chrome/browser/ui/javascript_dialogs/javascript_dialog.h
@@ -32,6 +32,9 @@ class JavaScriptDialog {
   // one.
   virtual void CloseDialogWithoutCallback() = 0;
 
+  // Returns the current value of the user input for a prompt dialog.
+  virtual base::string16 GetUserInput() = 0;
+
  protected:
   explicit JavaScriptDialog(content::WebContents* parent_web_contents);