Changing FlashTask to take in apply_vbmeta

Test: tested on Raven
Change-Id: I709842d87aa4ad6a7772e4f441886d127c3028a7
diff --git a/fastboot/fastboot.h b/fastboot/fastboot.h
index ed33481..c954487 100644
--- a/fastboot/fastboot.h
+++ b/fastboot/fastboot.h
@@ -88,7 +88,7 @@
 
 bool should_flash_in_userspace(const std::string& partition_name);
 bool is_userspace_fastboot();
-void do_flash(const char* pname, const char* fname);
+void do_flash(const char* pname, const char* fname, const bool apply_vbmeta);
 void do_for_partitions(const std::string& part, const std::string& slot,
                        const std::function<void(const std::string&)>& func, bool force_slot);
 std::string find_item(const std::string& item);