Refactor verifyProtocolHandlerScheme() in NavigatorContentUtils.cpp

Source/modules/navigatorcontentutils/NavigatorContentUtils.cpp

Index: Source/modules/navigatorcontentutils/NavigatorContentUtils.cpp
diff --git a/Source/modules/navigatorcontentutils/NavigatorContentUtils.cpp b/Source/modules/navigatorcontentutils/NavigatorContentUtils.cpp
index fdd04992108529cb2c5ff2b0685a49822ef84286..9e06b5af6e3a73d2f29e2a43ace267b702434267 100644
--- a/Source/modules/navigatorcontentutils/NavigatorContentUtils.cpp
+++ b/Source/modules/navigatorcontentutils/NavigatorContentUtils.cpp
@@ -107,7 +107,7 @@ static bool isProtocolWhitelisted(const String& scheme)
     return protocolWhitelist->contains(builder.toString());
 }
 
-static bool verifyProtocolHandlerScheme(const String& scheme, const String& method, ExceptionState& exceptionState)
+static bool verifyCustomHandlerScheme(const String& scheme, ExceptionState& exceptionState)
 {
     if (!isValidProtocol(scheme)) {
         exceptionState.throwSecurityError("The scheme '" + scheme + "' is not valid protocol");
@@ -155,7 +155,7 @@ void NavigatorContentUtils::registerProtocolHandler(Navigator& navigator, const
     if (!verifyCustomHandlerURL(baseURL, url, exceptionState))
         return;
 
-    if (!verifyProtocolHandlerScheme(scheme, "registerProtocolHandler", exceptionState))
+    if (!verifyCustomHandlerScheme(scheme, exceptionState))
         return;
 
     ASSERT(navigator.frame()->page());
@@ -198,7 +198,7 @@ String NavigatorContentUtils::isProtocolHandlerRegistered(Navigator& navigator,
     if (!verifyCustomHandlerURL(baseURL, url, exceptionState))
         return declined;
 
-    if (!verifyProtocolHandlerScheme(scheme, "isProtocolHandlerRegistered", exceptionState))
+    if (!verifyCustomHandlerScheme(scheme, exceptionState))
         return declined;
 
     ASSERT(navigator.frame()->page());
@@ -216,7 +216,7 @@ void NavigatorContentUtils::unregisterProtocolHandler(Navigator& navigator, cons
     if (!verifyCustomHandlerURL(baseURL, url, exceptionState))
         return;
 
-    if (!verifyProtocolHandlerScheme(scheme, "unregisterProtocolHandler", exceptionState))
+    if (!verifyCustomHandlerScheme(scheme, exceptionState))
         return;
 
     ASSERT(navigator.frame()->page());