Taking screenshots while running a test

chromeos/chromeos_switches.cc

Index: chromeos/chromeos_switches.cc
diff --git a/chromeos/chromeos_switches.cc b/chromeos/chromeos_switches.cc
index 1fbf1c51119d5ef9d97e7b0611a7e4545df0f0e7..45e975be02d2b70e03f62732ed7a0e27ffcb06e4 100644
--- a/chromeos/chromeos_switches.cc
+++ b/chromeos/chromeos_switches.cc
@@ -95,6 +95,9 @@ const char kEnableNetworkPortalNotification[] =
 // Enables activation of voice search by saying 'Ok Google'.
 const char kEnableOkGoogleVoiceSearch[] = "enable-ok-google-voice-search";
 
+// Enables using screenshots in tests.
+const char kEnableScreenshotTesting[] = "enable-screenshot-testing";
+
 // Enables touchpad three-finger-click as middle button.
 const char kEnableTouchpadThreeFingerClick[]
     = "enable-touchpad-three-finger-click";
@@ -234,6 +237,10 @@ const char kEnableFirstRunUITransitions[] = "enable-first-run-ui-transitions";
 // Forces first-run UI to be shown for every login.
 const char kForceFirstRunUI[] = "force-first-run-ui";
 
+// Turns on screenshot testing and specifies the directory where the
+// golden screenshots are stored.
+const char kScreenshotDestinationDir[] = "screenshot-destination-dir";
+
 // Enables testing for auto update UI.
 const char kTestAutoUpdateUI[] = "test-auto-update-ui";