Revert "libandroidfw hardening for IncFs"

Revert "Move map_ptr to incfs namspace"

Revert submission 12787270

Reason for revert: b/173250495
Reverted Changes:
I5cd1bc8a2:libandroidfw hardening for IncFs
Ice5dbcfb2:Move map_ptr to incfs namspace
I29ccdc8ed:Do not cache bag parent stack until requested
I1e9e9acaa:Cache resolved theme values

Change-Id: Ib90ef68339710086df41e9abe0833a542d03a74f
diff --git a/tools/aapt2/cmd/Link.cpp b/tools/aapt2/cmd/Link.cpp
index f92c602..118a76f 100644
--- a/tools/aapt2/cmd/Link.cpp
+++ b/tools/aapt2/cmd/Link.cpp
@@ -732,6 +732,22 @@
   return true;
 }
 
+static android::ApkAssetsCookie FindFrameworkAssetManagerCookie(
+    const android::AssetManager2& assets) {
+  using namespace android;
+
+  // Find the system package (0x01). AAPT always generates attributes with the type 0x01, so
+  // we're looking for the first attribute resource in the system package.
+  Res_value val{};
+  ResTable_config config{};
+  uint32_t type_spec_flags;
+  ApkAssetsCookie idx = assets.GetResource(0x01010000, true /** may_be_bag */,
+                                           0 /** density_override */, &val, &config,
+                                           &type_spec_flags);
+
+  return idx;
+}
+
 class Linker {
  public:
   Linker(LinkContext* context, const LinkOptions& options)
@@ -744,12 +760,8 @@
   void ExtractCompileSdkVersions(android::AssetManager2* assets) {
     using namespace android;
 
-    // Find the system package (0x01). AAPT always generates attributes with the type 0x01, so
-    // we're looking for the first attribute resource in the system package.
-    android::ApkAssetsCookie cookie;
-    if (auto value = assets->GetResource(0x01010000, true /** may_be_bag */); value.has_value()) {
-      cookie = value->cookie;
-    } else {
+    android::ApkAssetsCookie cookie = FindFrameworkAssetManagerCookie(*assets);
+    if (cookie == android::kInvalidCookie) {
       // No Framework assets loaded. Not a failure.
       return;
     }