Make it possible to set the display mode from the WebView API

Source/core/testing/InternalSettings.cpp

Index: Source/core/testing/InternalSettings.cpp
diff --git a/Source/core/testing/InternalSettings.cpp b/Source/core/testing/InternalSettings.cpp
index 937f05b1325d59ac95befc65439265fbe36cedac..efacef8296b25082f8beaa493b72341ba837fb04 100644
--- a/Source/core/testing/InternalSettings.cpp
+++ b/Source/core/testing/InternalSettings.cpp
@@ -378,15 +378,15 @@ void InternalSettings::setDisplayModeOverride(const String& displayMode, Excepti
     InternalSettingsGuardForSettings();
     String token = displayMode.stripWhiteSpace();
 
-    DisplayMode mode = DisplayModeBrowser;
+    WebDisplayMode mode = WebDisplayModeBrowser;
     if (token == "browser")
-        mode = DisplayModeBrowser;
+        mode = WebDisplayModeBrowser;
     else if (token == "minimal-ui")
-        mode = DisplayModeMinimalUi;
+        mode = WebDisplayModeMinimalUi;
     else if (token == "standalone")
-        mode = DisplayModeStandalone;
+        mode = WebDisplayModeStandalone;
     else if (token == "fullscreen")
-        mode = DisplayModeFullscreen;
+        mode = WebDisplayModeFullscreen;
     else
         exceptionState.throwDOMException(SyntaxError, "The display-mode token ('" + token + ")' is invalid.");