Invert IsUsingDefaultBootImageLocation to IsUsingApexBootImageLocation.

Some tests are picking up the jit-zygote path, which is not intended.

Invert the flag so that if in doubt, we don't execute the experiment path.

Bug: 119800099
Change-Id: Ief3ff353cc25fa81157a75d917814982f3836ed0
diff --git a/runtime/runtime.h b/runtime/runtime.h
index ff4755e..a20aef4 100644
--- a/runtime/runtime.h
+++ b/runtime/runtime.h
@@ -186,8 +186,8 @@
     return image_location_;
   }
 
-  bool IsUsingDefaultBootImageLocation() const {
-    return is_using_default_boot_image_location_;
+  bool IsUsingApexBootImageLocation() const {
+    return is_using_apex_boot_image_location_;
   }
 
   // Starts a runtime, which may cause threads to be started and code to run.
@@ -946,7 +946,7 @@
   std::vector<std::string> compiler_options_;
   std::vector<std::string> image_compiler_options_;
   std::string image_location_;
-  bool is_using_default_boot_image_location_;
+  bool is_using_apex_boot_image_location_;
 
   std::vector<std::string> boot_class_path_;
   std::vector<std::string> boot_class_path_locations_;