[cros] Initial WebRTC-enabled implementation of user image picker on OOBE.

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index b2076535db93d802751744897baac1b4404a3513..1f2f97b36ccaa9c61d0e86b4fa0f230a05a6b02f 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -535,6 +535,9 @@ const char kEnableFileCookies[]             = "enable-file-cookies";
 // Without this flag, pipelining will never be used.
 const char kEnableHttpPipelining[]          = "enable-http-pipelining";
 
+// Enables new WebRTC implementation of user image picker.
+const char kEnableHtml5Camera[]             = "enable-html5-camera";
+
 // Enables IPv6 support, even if probes suggest that it may not be fully
 // supported. Some probes may require internet connections, and this flag will
 // allow support independent of application testing. This flag overrides