Add multidex rules for `androidx.startup`.
Test: Built the release variant of androidx.startup integration test app.
Change-Id: I3e25f8028b42b5ca037b87b88d0a36f0cf74b9b9
diff --git a/startup/startup-runtime/proguard-rules.pro b/startup/startup-runtime/proguard-rules.pro
index 961a1eb..b35cf7a 100644
--- a/startup/startup-runtime/proguard-rules.pro
+++ b/startup/startup-runtime/proguard-rules.pro
@@ -1,5 +1,9 @@
-# This Proguard rule ensures that ComponentInitializers are are neither shrunk nor obfuscated.
-# This is because they are discovered and instantiated during application initialization.
+# It's important that we preserve initializer names, given they are used in the AndroidManifest.xml.
+-keepnames class * extends androidx.startup.Initializer
+
+# These Proguard rules ensures that ComponentInitializers are are neither shrunk nor obfuscated,
+# and are a part of the primary dex file. This is because they are discovered and instantiated
+# during application startup.
-keep class * extends androidx.startup.Initializer {
# Keep the public no-argument constructor while allowing other methods to be optimized.
<init>();
