Extensions: suspend extension's scripts when V8 is paused

extensions/renderer/scripts_run_info.h

Index: extensions/renderer/scripts_run_info.h
diff --git a/extensions/renderer/scripts_run_info.h b/extensions/renderer/scripts_run_info.h
index e577cc32cb3175e8c3058de7a2c13df06e144d7c..957671fb931b27bcd5029fa7acd2d285dbb59529 100644
--- a/extensions/renderer/scripts_run_info.h
+++ b/extensions/renderer/scripts_run_info.h
@@ -32,6 +32,8 @@ struct ScriptsRunInfo {
   size_t num_css;
   // The number of JS scripts injected.
   size_t num_js;
+  // The number of blocked JS scripts injected.
+  size_t num_blocking_js;
   // A map of extension ids to executing script paths.
   ExecutingScriptsMap executing_scripts;
   // The elapsed time since the ScriptsRunInfo was constructed.