Send onsubmit query down to the instant extended overlay page when a navigation is performed from t…

chrome/renderer/searchbox/searchbox.cc

Index: chrome/renderer/searchbox/searchbox.cc
diff --git a/chrome/renderer/searchbox/searchbox.cc b/chrome/renderer/searchbox/searchbox.cc
index 348e894c10f0eb085743fb247910e5f3bdc04957..e008a1df9fc094178208f79ba128f027be21f3b7 100644
--- a/chrome/renderer/searchbox/searchbox.cc
+++ b/chrome/renderer/searchbox/searchbox.cc
@@ -194,7 +194,10 @@ void SearchBox::OnChange(const string16& query,
 }
 
 void SearchBox::OnSubmit(const string16& query) {
-  query_ = query;
+  if (!query.empty()) {
+    query_ = query;
+  }
+
   verbatim_ = true;
   selection_start_ = selection_end_ = query_.size();

[sreeram, 2013/04/01 20:08:46]

Put all these other things also into the 'if' block. (I.e., don't modify any
state if |query| is empty).

Please also add a comment as to why:
// Submit() is called when the user hits Enter to commit the omnibox text.
// If |query| is non-blank, the user committed a search. If it's blank, the
// omnibox text was a URL, and the user is navigating to it, in which case
// we shouldn't update the |query_| or associated state.

[robertshield, 2013/04/08 16:02:47]

Done.

   if (render_view()->GetWebView() && render_view()->GetWebView()->mainFrame()) {