In boot image experiment mode, treat boot classpath classes as verified.

Bug: 119800099
Test: m && boot
Change-Id: Ib7fbdf46c1fd65a79f07c5331eae4a54d526ce5b
diff --git a/runtime/class_linker.cc b/runtime/class_linker.cc
index 65fe4e4..89c6a0b 100644
--- a/runtime/class_linker.cc
+++ b/runtime/class_linker.cc
@@ -4635,6 +4635,20 @@
   const OatDexFile* oat_dex_file = dex_file.GetOatDexFile();
   // In case we run without an image there won't be a backing oat file.
   if (oat_dex_file == nullptr || oat_dex_file->GetOatFile() == nullptr) {
+    if (!kIsDebugBuild && klass->GetClassLoader() == nullptr) {
+      // For boot classpath classes in the case we're not using a default boot image:
+      // we don't have the infrastructure yet to query verification data on individual
+      // boot vdex files, so it's simpler for now to consider all boot classpath classes
+      // verified. This should be taken into account when measuring boot time and app
+      // startup compare to the (current) production system where both:
+      // 1) updatable boot classpath classes, and
+      // 2) classes in /system referencing updatable classes
+      // will be verified at runtime.
+      if (!Runtime::Current()->IsUsingDefaultBootImageLocation()) {
+        oat_file_class_status = ClassStatus::kVerified;
+        return true;
+      }
+    }
     return false;
   }