Fix minor issues in ChromeDriver.

chrome/test/webdriver/commands/session_with_id.cc

Index: chrome/test/webdriver/commands/session_with_id.cc
diff --git a/chrome/test/webdriver/commands/session_with_id.cc b/chrome/test/webdriver/commands/session_with_id.cc
index 5889be47aacae906dda60f923fb30a400366974b..7c4f00074659e4603b88ea40afc3ded8662f9554 100644
--- a/chrome/test/webdriver/commands/session_with_id.cc
+++ b/chrome/test/webdriver/commands/session_with_id.cc
@@ -51,9 +51,14 @@ void SessionWithID::ExecuteGet(Response* const response) {
   temp_value->SetBoolean("javascriptEnabled", true);
 
   // Custom non-standard session info.
-  temp_value->SetString("chrome.chromedriverVersion", "1.0");
-  temp_value->SetString("chrome.automationVersion", chrome::kChromeVersion);
-  temp_value->SetBoolean("chrome.nativeEvents", session_->use_native_events());
+  temp_value->SetWithoutPathExpansion(
+      "chrome.chromedriverVersion", Value::CreateStringValue("1.0"));
+  temp_value->SetWithoutPathExpansion(
+      "chrome.automationVersion",
+      Value::CreateStringValue(chrome::kChromeVersion));
+  temp_value->SetWithoutPathExpansion(
+      "chrome.nativeEvents",
+      Value::CreateBooleanValue(session_->use_native_events()));
 
   response->SetValue(temp_value);
 }