Add Easy Unlock options to chrome://settings behind a flag.

chrome/common/url_constants.cc

Index: chrome/common/url_constants.cc
diff --git a/chrome/common/url_constants.cc b/chrome/common/url_constants.cc
index a7692a451f004bbe5efff8765ffcfcb8208b303d..7a9a23da7f1898b2a8e7b018b14d7d5a52503e4a 100644
--- a/chrome/common/url_constants.cc
+++ b/chrome/common/url_constants.cc
@@ -709,4 +709,9 @@ const char kMac32BitDeprecationURL[] =
 #endif
 #endif
 
+// TODO(tengs): Replace with real URL when ready.
+const char kEasyUnlockLearnMoreUrl[] =
+    "https://support.google.com/chromebook/?p=easy_unlock";
+const char kEasyUnlockManagementUrl[] = "https://chrome.com";
+
 }  // namespace chrome