[chromedriver] Implement command: executeAsyncScript and setScriptTimeout

chrome/test/chromedriver/session_commands.cc

Index: chrome/test/chromedriver/session_commands.cc
diff --git a/chrome/test/chromedriver/session_commands.cc b/chrome/test/chromedriver/session_commands.cc
index aa0cf12de1ccb5ab8fea15b5b8a663b03e79287d..f930f67f710ed2259cfd9966eb7debe9dfdd2a7c 100644
--- a/chrome/test/chromedriver/session_commands.cc
+++ b/chrome/test/chromedriver/session_commands.cc
@@ -184,6 +184,17 @@ Status ExecuteSetTimeout(
   return Status(kOk);
 }
 
+Status ExecuteSetScriptTimeout(
+    Session* session,
+    const base::DictionaryValue& params,
+    scoped_ptr<base::Value>* value) {
+  int ms;
+  if (!params.GetInteger("ms", &ms) || ms < 0)
+    return Status(kUnknownError, "'ms' must be a non-negative integer");
+  session->script_timeout = ms;
+  return Status(kOk);
+}
+
 Status ExecuteGetAlert(
     Session* session,
     const base::DictionaryValue& params,