Do not proguard com.android.systemui.log

Defensively also add com.android.systemui.common

Bug: 280569676
Test: Manually checked crashlooping device
Change-Id: I4959d2853f7bedc3f699999085b8a32c19a23ece

packages/SystemUI/plugin/Android.bp

@@ -34,6 +34,8 @@ java_library {
 
     // If you add a static lib here, you may need to also add the package to the ClassLoaderFilter
     // in PluginInstance. That will ensure that loaded plugins have access to the related classes.
+    // You should also add it to proguard_common.flags so that proguard does not remove the portions
+    // of the library which are used by the plugins but not by systemui itself.
     static_libs: [
         "androidx.annotation_annotation",
         "PluginCoreLib",

packages/SystemUI/proguard_common.flags

@@ -62,11 +62,17 @@
 -keep class ** extends androidx.preference.PreferenceFragment
 -keep class com.android.systemui.tuner.*
 
-# The plugins subpackage acts as a shared library that might be referenced in
+# The plugins, log & common subpackages act as shared libraries that might be referenced in
 # dynamically-loaded plugin APKs.
 -keep class com.android.systemui.plugins.** {
     *;
 }
+-keep class com.android.systemui.log.** {
+    *;
+}
+-keep class com.android.systemui.common.** {
+    *;
+}
 -keep class com.android.systemui.fragments.FragmentService$FragmentCreator {
     *;
 }

packages/SystemUI/shared/src/com/android/systemui/shared/plugins/PluginInstance.java

@@ -230,7 +230,10 @@ public class PluginInstance<T extends Plugin> implements PluginLifecycleManager
 
         private ClassLoader getParentClassLoader(ClassLoader baseClassLoader) {
             return new PluginManagerImpl.ClassLoaderFilter(
-                    baseClassLoader, "com.android.systemui.log", "com.android.systemui.plugin");
+                    baseClassLoader,
+                    "com.android.systemui.common",
+                    "com.android.systemui.log",
+                    "com.android.systemui.plugin");
         }
 
         /** Returns class loader specific for the given plugin. */