Prevent querying of restricted query values.

chrome/renderer/searchbox/searchbox_extension.cc

Index: chrome/renderer/searchbox/searchbox_extension.cc
diff --git a/chrome/renderer/searchbox/searchbox_extension.cc b/chrome/renderer/searchbox/searchbox_extension.cc
index cb745307fa252eaa6305c240237af0ab196bfa9b..50b24c70fb93665b777b87445b9e700209b37970 100644
--- a/chrome/renderer/searchbox/searchbox_extension.cc
+++ b/chrome/renderer/searchbox/searchbox_extension.cc
@@ -787,6 +787,9 @@ v8::Handle<v8::Value>
   std::vector<InstantSuggestion> suggestions;
   suggestions.push_back(InstantSuggestion(text, behavior, type));
   SearchBox::Get(render_view)->SetSuggestions(suggestions);
+  // Clear the SearchBox's query text explicitly since this is a restricted
+  // value.
+  SearchBox::Get(render_view)->ClearQuery();
 
   return v8::Undefined();
 }
@@ -833,6 +836,9 @@ v8::Handle<v8::Value>
   std::vector<InstantSuggestion> suggestions;
   suggestions.push_back(InstantSuggestion(text, behavior, type));
   SearchBox::Get(render_view)->SetSuggestions(suggestions);
+  // Clear the SearchBox's query text explicitly since this is a restricted
+  // value.
+  SearchBox::Get(render_view)->ClearQuery();
 
   return v8::Undefined();
 }