From 9440df91057bb1c7a2cc03e9a61468dc725cfa4f Mon Sep 17 00:00:00 2001
From: Jackal Guo <jackalguo@google.com>
Date: Mon, 21 Jun 2021 13:08:56 +0800
Subject: [PATCH] Remove unused interface and implementation

Get rid of the unused method to mitigate the potential information
leakage.

Bug: 185124942
Test: atest view-compiler-tests
Test: atest android.view.cts.LayoutInflaterTest
Test: atest -p core/java/android/content/pm
Test: atest -p services/core/java/com/android/server/pm
Test: manually using the PoC in the buganizer to ensure the symptom
      no longer exists.
Change-Id: I5ee7381728a93535849fcf61a1373a5ed9036aa4
---
 core/java/android/content/pm/IPackageManager.aidl |  5 -----
 .../android/server/pm/PackageManagerService.java  | 15 ---------------
 2 files changed, 20 deletions(-)

diff --git a/core/java/android/content/pm/IPackageManager.aidl b/core/java/android/content/pm/IPackageManager.aidl
index c2ac80e7c98f9..d3ed006083244 100644
--- a/core/java/android/content/pm/IPackageManager.aidl
+++ b/core/java/android/content/pm/IPackageManager.aidl
@@ -585,11 +585,6 @@ interface IPackageManager {
     boolean performDexOptSecondary(String packageName,
             String targetCompilerFilter, boolean force);
 
-    /**
-    * Ask the package manager to compile layouts in the given package.
-    */
-    boolean compileLayouts(String packageName);
-
     /**
      * Ask the package manager to dump profiles associated with a package.
      */
diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index b02b704283f6d..144196b291dd2 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -12677,21 +12677,6 @@ public class PackageManagerService extends IPackageManager.Stub
         return performDexOpt(new DexoptOptions(packageName, compilerFilter, flags));
     }
 
-    /**
-    * Ask the package manager to compile layouts in the given package.
-    */
-    @Override
-    public boolean compileLayouts(String packageName) {
-        AndroidPackage pkg;
-        synchronized (mLock) {
-            pkg = mPackages.get(packageName);
-            if (pkg == null) {
-                return false;
-            }
-        }
-        return mViewCompiler.compileLayouts(pkg);
-    }
-
     /*package*/ boolean performDexOpt(DexoptOptions options) {
         if (getInstantAppPackageName(Binder.getCallingUid()) != null) {
             return false;