Convert WindowOpenDisposition to an enum class.

chrome/browser/ui/cocoa/one_click_signin_view_controller.mm

Index: chrome/browser/ui/cocoa/one_click_signin_view_controller.mm
diff --git a/chrome/browser/ui/cocoa/one_click_signin_view_controller.mm b/chrome/browser/ui/cocoa/one_click_signin_view_controller.mm
index afba24fced1e738d2c1160f5e2d44216ca80949e..6ed318a4d75d7270c78a9d4f7d2fffd122282677 100644
--- a/chrome/browser/ui/cocoa/one_click_signin_view_controller.mm
+++ b/chrome/browser/ui/cocoa/one_click_signin_view_controller.mm
@@ -111,9 +111,9 @@ void ShiftOriginY(NSView* view, CGFloat amount) {
         OneClickSigninSyncStarter::CONFIGURE_SYNC_FIRST);
   }
   else {
-    content::OpenURLParams params(GURL(chrome::kChromeUISettingsURL),
-                                  content::Referrer(), CURRENT_TAB,
-                                  ui::PAGE_TRANSITION_LINK, false);
+    content::OpenURLParams params(
+        GURL(chrome::kChromeUISettingsURL), content::Referrer(),
+        WindowOpenDisposition::CURRENT_TAB, ui::PAGE_TRANSITION_LINK, false);
     webContents_->OpenURL(params);
   }
   [self close];
@@ -288,8 +288,9 @@ void ShiftOriginY(NSView* view, CGFloat amount) {
     signin_metrics::LogSigninConfirmHistogramValue(
         signin_metrics::HISTOGRAM_CONFIRM_LEARN_MORE);
   }
-  WindowOpenDisposition location = isSyncDialog_ ?
-                                   NEW_WINDOW : NEW_FOREGROUND_TAB;
+  WindowOpenDisposition location =
+      isSyncDialog_ ? WindowOpenDisposition::NEW_WINDOW
+                    : WindowOpenDisposition::NEW_FOREGROUND_TAB;
   content::OpenURLParams params(GURL(chrome::kChromeSyncLearnMoreURL),
                                 content::Referrer(), location,
                                 ui::PAGE_TRANSITION_LINK, false);