Implement the new Sync Confirmation dialog on Linux and Windows.

chrome/common/url_constants.cc

Index: chrome/common/url_constants.cc
diff --git a/chrome/common/url_constants.cc b/chrome/common/url_constants.cc
index 3f81c2ede9463268371223610aa0dda8fc941755..67de0a4b3b05696a6f5eda4d589adc7ac564ef4f 100644
--- a/chrome/common/url_constants.cc
+++ b/chrome/common/url_constants.cc
@@ -81,6 +81,7 @@ const char kChromeUISettingsFrameURL[] = "chrome://settings-frame/";
 const char kChromeUISuggestionsURL[] = "chrome://suggestions/";
 const char kChromeUISupervisedUserPassphrasePageURL[] =
     "chrome://managed-user-passphrase/";
+const char kChromeUISyncConfirmationURL[] = "chrome://sync-confirmation/";
 const char kChromeUITermsURL[] = "chrome://terms/";
 const char kChromeUIThemeURL[] = "chrome://theme/";
 const char kChromeUIThumbnailURL[] = "chrome://thumb/";
@@ -236,6 +237,7 @@ const char kChromeUISuggestionsHost[] = "suggestions";
 const char kChromeUISupervisedUserInternalsHost[] = "supervised-user-internals";
 const char kChromeUISupervisedUserPassphrasePageHost[] =
     "managed-user-passphrase";
+const char kChromeUISyncConfirmationHost[] = "sync-confirmation";
 const char kChromeUISyncHost[] = "sync";
 const char kChromeUISyncFileSystemInternalsHost[] = "syncfs-internals";
 const char kChromeUISyncInternalsHost[] = "sync-internals";