Output dex_preopt to SDK snapshot.

This is needed to determine whether we need to deapex the profile or
not.

Bug: 241823638
Test: m nothing
Test: -
  1. Patch ag/20582608 PS2.
  2. TARGET_BUILD_APPS=com.android.wifi packages/modules/common/build/mainline_modules_sdks.sh
  3. See the `dex_preopt` property being written.
Change-Id: I05177388c24be1ab315247ea85e7e3a8600cebd3
diff --git a/java/dexpreopt.go b/java/dexpreopt.go
index c4b0af4..fa52ae6 100644
--- a/java/dexpreopt.go
+++ b/java/dexpreopt.go
@@ -78,7 +78,8 @@
 }
 
 type dexpreopter struct {
-	dexpreoptProperties DexpreoptProperties
+	dexpreoptProperties       DexpreoptProperties
+	importDexpreoptProperties ImportDexpreoptProperties
 
 	installPath         android.InstallPath
 	uncompressedDex     bool
@@ -127,6 +128,18 @@
 		// profile location set by PRODUCT_DEX_PREOPT_PROFILE_DIR, or empty if not found.
 		Profile *string `android:"path"`
 	}
+
+	Dex_preopt_result struct {
+		// True if profile-guided optimization is actually enabled.
+		Profile_guided bool
+	} `blueprint:"mutated"`
+}
+
+type ImportDexpreoptProperties struct {
+	Dex_preopt struct {
+		// If true, use the profile in the prebuilt APEX to guide optimization. Defaults to false.
+		Profile_guided *bool
+	}
 }
 
 func init() {
@@ -310,6 +323,8 @@
 		}
 	}
 
+	d.dexpreoptProperties.Dex_preopt_result.Profile_guided = profileClassListing.Valid()
+
 	// Full dexpreopt config, used to create dexpreopt build rules.
 	dexpreoptConfig := &dexpreopt.ModuleConfig{
 		Name:            moduleName(ctx),