Changing FlashTask to take in apply_vbmeta

Test: tested on Raven
Change-Id: I709842d87aa4ad6a7772e4f441886d127c3028a7
diff --git a/fastboot/task.h b/fastboot/task.h
index 149c34c..264e43f 100644
--- a/fastboot/task.h
+++ b/fastboot/task.h
@@ -32,8 +32,9 @@
 
 class FlashTask : public Task {
   public:
-    FlashTask(const std::string& slot, const std::string& pname);
-    FlashTask(const std::string& slot, const std::string& pname, const std::string& fname);
+    FlashTask(const std::string& slot, const std::string& pname, const bool apply_vbmeta);
+    FlashTask(const std::string& slot, const std::string& pname, const std::string& fname,
+              const bool apply_vbmeta);
 
     void Run() override;
 
@@ -41,6 +42,7 @@
     const std::string pname_;
     const std::string fname_;
     const std::string slot_;
+    const bool apply_vbmeta_;
 };
 
 class RebootTask : public Task {