public Builder setOnItemSelectedAction(PendingIntent onItemSelectedPendingIntent) {
            mOnItemSelectedPendingIntent = onItemSelectedPendingIntent;
            return this;
        }
Set the PendingIntent to be launched when a a browser specified menu item is selected.
@param onItemSelectedPendingIntent The PendingIntent to be launched.
customtabs/src/android/support/customtabs/browseractions/BrowserActionsIntent.java