Add handle scopes around executeScriptAndReturnValue callsites

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 8233bda3e4de560c899d0bc2d3c89a10cef68556..501168f187de99fb1cd1c44e059dfe3b44030735 100644
--- a/chrome/renderer/searchbox/searchbox_extension.cc
+++ b/chrome/renderer/searchbox/searchbox_extension.cc
@@ -871,7 +871,7 @@ v8::Extension* SearchBoxExtension::Get() {
 // static
 bool SearchBoxExtension::PageSupportsInstant(WebKit::WebFrame* frame) {
   if (!frame) return false;
-
+  v8::HandleScope handle_scope;
   v8::Handle<v8::Value> v = frame->executeScriptAndReturnValue(
       WebKit::WebScriptSource(kSupportsInstantScript));
   return !v.IsEmpty() && v->BooleanValue();