Revert "Revert "Load app images""

This reverts commit 1bc977cf2f8199311a97f2ba9431a184540e3e9c.

Bug: 22858531

Change-Id: Ide00bf3a73a02cba3bb364177204ad1b13f70295
diff --git a/runtime/mirror/dex_cache-inl.h b/runtime/mirror/dex_cache-inl.h
index 975af61..2ecc9fb 100644
--- a/runtime/mirror/dex_cache-inl.h
+++ b/runtime/mirror/dex_cache-inl.h
@@ -122,18 +122,23 @@
   }
 }
 
-template <VerifyObjectFlags kVerifyFlags, typename Visitor>
+template <bool kVisitNativeRoots,
+          VerifyObjectFlags kVerifyFlags,
+          ReadBarrierOption kReadBarrierOption,
+          typename Visitor>
 inline void DexCache::VisitReferences(mirror::Class* klass, const Visitor& visitor) {
   // Visit instance fields first.
-  VisitInstanceFieldsReferences(klass, visitor);
+  VisitInstanceFieldsReferences<kVerifyFlags, kReadBarrierOption>(klass, visitor);
   // Visit arrays after.
-  GcRoot<mirror::String>* strings = GetStrings();
-  for (size_t i = 0, num_strings = NumStrings(); i != num_strings; ++i) {
-    visitor.VisitRootIfNonNull(strings[i].AddressWithoutBarrier());
-  }
-  GcRoot<mirror::Class>* resolved_types = GetResolvedTypes();
-  for (size_t i = 0, num_types = NumResolvedTypes(); i != num_types; ++i) {
-    visitor.VisitRootIfNonNull(resolved_types[i].AddressWithoutBarrier());
+  if (kVisitNativeRoots) {
+    GcRoot<mirror::String>* strings = GetStrings();
+    for (size_t i = 0, num_strings = NumStrings(); i != num_strings; ++i) {
+      visitor.VisitRootIfNonNull(strings[i].AddressWithoutBarrier());
+    }
+    GcRoot<mirror::Class>* resolved_types = GetResolvedTypes();
+    for (size_t i = 0, num_types = NumResolvedTypes(); i != num_types; ++i) {
+      visitor.VisitRootIfNonNull(resolved_types[i].AddressWithoutBarrier());
+    }
   }
 }