Implement the spring charger replacement UI.

chrome/common/url_constants.h

Index: chrome/common/url_constants.h
diff --git a/chrome/common/url_constants.h b/chrome/common/url_constants.h
index 6344e9ffecac27fbfebaa269fb6171b5989446bd..573f9476278dcb431bad961de5013e22b6c1b9fc 100644
--- a/chrome/common/url_constants.h
+++ b/chrome/common/url_constants.h
@@ -94,6 +94,7 @@ extern const char kChromeUIWelcomeURL[];
 #if defined(OS_CHROMEOS)
 extern const char kChromeUIActivationMessage[];
 extern const char kChromeUIBluetoothPairingURL[];
+extern const char kChromeUIChargerReplacementURL[];
 extern const char kChromeUIChooseMobileNetworkURL[];
 extern const char kChromeUIDiagnosticsURL[];
 extern const char kChromeUIDiscardsURL[];
@@ -240,6 +241,7 @@ extern const char kChromeUISandboxHost[];
 extern const char kChromeUIActivationMessageHost[];
 extern const char kChromeUIAppLaunchHost[];
 extern const char kChromeUIBluetoothPairingHost[];
+extern const char kChromeUIChargerReplacementHost[];
 extern const char kChromeUIChooseMobileNetworkHost[];
 extern const char kChromeUICryptohomeHost[];
 extern const char kChromeUIDiagnosticsHost[];