Don't let proguard rename the CREATOR static of any Parcelable

base/android/base_proguard_config.flags

 # Keep line number information, useful for stack traces.
 -keepattributes SourceFile,LineNumberTable
 
 # Keep all annotation related attributes that can affect runtime
 -keepattributes RuntimeVisible*Annotations
 -keepattributes AnnotationDefault
 
 # Keep the annotations, because if we don't, the ProGuard rules that use them
 # will not be respected. These classes then show up in our final dex, which we
 # do not want - see crbug.com/628226.
@@ skipping 19 matching lines @@
 -keepclasseswithmembers,includedescriptorclasses class * {
   @org.chromium.base.annotations.CalledByNativeUnchecked <methods>;
 }
 -keepclasseswithmembers class * {
   @org.chromium.base.annotations.UsedByReflection <methods>;
 }
 -keepclasseswithmembers,includedescriptorclasses class * {
   native <methods>;
 }
 
+# Keep all Parcelables as they might be marshalled outside Chrome.
+-keepnames class * implements android.os.Parcelable {

[smaier, 2016/08/18 14:42:29]

This rule should become:

-keepclassmembers class * implements android.os.Parcelable {
  public static *** CREATOR;
}
(note -keepnames -> -keepclassmembers and final ** -> ***)

I haven't had the chance to change it yet.

+   public static final ** CREATOR;
+}
+
 # Remove methods annotated with this if their return value is unused
 -assumenosideeffects class ** {
   @org.chromium.base.annotations.RemovableInRelease <methods>;
 }
 
 # Allows Proguard freedom in removing these log related calls. We ask for debug
 # and verbose logs to be stripped out in base.Log, so we are just ensuring we
 # get rid of all other debug/verbose logs.
 -assumenosideeffects class android.util.Log {
   static *** d(...);
   static *** v(...);
   static *** isLoggable(...);
 }
 
 # Keep all enum values and valueOf methods. See
 # http://proguard.sourceforge.net/index.html#manual/examples.html
 # for the reason for this. Also, see http://crbug.com/248037.
 -keepclassmembers enum * {
     public static **[] values();
 }
+