Convert WindowOpenDisposition to an enum class.

chrome/browser/ui/cocoa/one_click_signin_view_controller.mm

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/ui/cocoa/one_click_signin_view_controller.h"
 
 #include "base/callback_helpers.h"
 #include "base/logging.h"
 #include "base/mac/bundle_locations.h"
 #import "chrome/browser/ui/chrome_style.h"
@@ skipping 93 matching lines @@
   if (isSyncDialog_) {
     signin_metrics::LogSigninConfirmHistogramValue(
         clickedLearnMore_ ?
             signin_metrics::HISTOGRAM_CONFIRM_LEARN_MORE_ADVANCED :
             signin_metrics::HISTOGRAM_CONFIRM_ADVANCED);
 
     base::ResetAndReturn(&startSyncCallback_).Run(
         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];
 }
 
 - (IBAction)onClickClose:(id)sender {
   if (isSyncDialog_) {
     signin_metrics::LogSigninConfirmHistogramValue(
         clickedLearnMore_ ?
             signin_metrics::HISTOGRAM_CONFIRM_LEARN_MORE_CLOSE :
@@ skipping 154 matching lines @@
 
 - (BOOL)textView:(NSTextView*)textView
    clickedOnLink:(id)link
          atIndex:(NSUInteger)charIndex {
   if (isSyncDialog_ && !clickedLearnMore_) {
     clickedLearnMore_ = YES;
 
     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);
   webContents_->OpenURL(params);
   return YES;
 }
 
 - (void)close {
   base::ResetAndReturn(&closeCallback_).Run();
 }
 
 @end
 
 @implementation OneClickSigninViewController (TestingAPI)
 
 - (NSTextView*)linkViewForTesting {
   return informativeTextView_.get();
 }
 
 @end