Fix most remaining WebUI link errors on Android.

chrome/browser/sync/profile_sync_service.cc

Index: chrome/browser/sync/profile_sync_service.cc
diff --git a/chrome/browser/sync/profile_sync_service.cc b/chrome/browser/sync/profile_sync_service.cc
index da305a6de1320090366693a7581d8c6bcaf50d01..3a21aa83e3ad90550862699cb3b15eb0d2b288c4 100644
--- a/chrome/browser/sync/profile_sync_service.cc
+++ b/chrome/browser/sync/profile_sync_service.cc
@@ -704,6 +704,7 @@ void ProfileSyncService::OnDataTypesChanged(
     // Received notice to enable experimental type. Check if the type is
     // registered, and if not register a new datatype controller.
     RegisterNewDataType(it.Get());
+#if !defined(OS_ANDROID)
     // Enable the about:flags switch for the experimental type so we don't have
     // to always perform this reconfiguration. Once we set this, the type will
     // remain registered on restart, so we will no longer go down this code
@@ -714,6 +715,7 @@ void ProfileSyncService::OnDataTypesChanged(
     about_flags::SetExperimentEnabled(g_browser_process->local_state(),
                                       experiment_name,
                                       true);
+#endif  // !defined(OS_ANDROID)
   }
 
   // Check if the user has "Keep Everything Synced" enabled. If so, we want
@@ -967,7 +969,12 @@ void ProfileSyncService::OnActionableError(const SyncProtocolError& error) {
 
 void ProfileSyncService::ShowErrorUI() {
   // TODO(atwilson): Remove this.
+#if defined(OS_ANDROID)
+  // Android uses native UI for sync setup.
+  NOTREACHED();
+#else
   LoginUIServiceFactory::GetForProfile(profile_)->ShowLoginUI(false);
+#endif
 }
 
 std::string ProfileSyncService::QuerySyncStatusSummary() {