Add an infobar if a session is being controlled by an automated test.

chrome/test/chromedriver/chrome_launcher.cc

Index: chrome/test/chromedriver/chrome_launcher.cc
diff --git a/chrome/test/chromedriver/chrome_launcher.cc b/chrome/test/chromedriver/chrome_launcher.cc
index b66294a526fb7da80359c59de6faf5013059a752..224d609bc1457911310a9f264669dbc677c63ad6 100644
--- a/chrome/test/chromedriver/chrome_launcher.cc
+++ b/chrome/test/chromedriver/chrome_launcher.cc
@@ -62,32 +62,29 @@
 namespace {
 
 const char* const kCommonSwitches[] = {
-  "disable-infobars",
-  "disable-popup-blocking",
-  "ignore-certificate-errors",
-  "metrics-recording-only",
+    "disable-popup-blocking", "enable-automation", "ignore-certificate-errors",
+    "metrics-recording-only",
 };
 
 const char* const kDesktopSwitches[] = {
-  "disable-hang-monitor",
-  "disable-prompt-on-repost",
-  "disable-sync",
-  "no-first-run",
-  "disable-background-networking",
-  "disable-web-resources",
-  "safebrowsing-disable-auto-update",
-  "disable-client-side-phishing-detection",
-  "disable-default-apps",
-  "enable-logging",
-  "log-level=0",
-  "password-store=basic",
-  "use-mock-keychain",
-  "test-type=webdriver",
+    "disable-hang-monitor",
+    "disable-prompt-on-repost",
+    "disable-sync",
+    "no-first-run",
+    "disable-background-networking",
+    "disable-web-resources",
+    "safebrowsing-disable-auto-update",
+    "disable-client-side-phishing-detection",
+    "disable-default-apps",
+    "enable-logging",
+    "log-level=0",
+    "password-store=basic",
+    "use-mock-keychain",
+    "test-type=webdriver",
 };
 
 const char* const kAndroidSwitches[] = {
-  "disable-fre",
-  "enable-remote-debugging",
+    "disable-fre", "enable-remote-debugging",
 };
 
 #if defined(OS_LINUX)