AutoFill: Record whether the user initiated the form submission and don't save form data if the form

chrome/browser/autofill/form_structure.cc

Index: chrome/browser/autofill/form_structure.cc
diff --git a/chrome/browser/autofill/form_structure.cc b/chrome/browser/autofill/form_structure.cc
index dd12d3747891a3908cb9d0c9660469880dda6a23..9fb3d630a130cc07e7c3bafeb2f900b5923e9ceb 100644
--- a/chrome/browser/autofill/form_structure.cc
+++ b/chrome/browser/autofill/form_structure.cc
@@ -329,6 +329,9 @@ FormData FormStructure::ConvertToFormData() const {
   form.origin = source_url_;
   form.action = target_url_;
 
+  // FormStructures can't be created by forms not submitted by the user.
+  form.user_submitted = true;
+
   if (method_ == GET)
     form.method = ASCIIToUTF16("GET");
   else if (method_ == POST)