Cast ChromeShell into the fiery pit of Mount Doom.

chrome/android/shell/java/proguard.flags

-# Keep line number information, useful for stack traces.
--keepattributes SourceFile,LineNumberTable
-
-# Keep all runtime visible annotations
--keepattributes RuntimeVisibleAnnotations
-
-# Keep the annotations.
--keep @interface ***
-
-# A lot of code in org.chromium is used by both the internal Chrome code and by
-# ChromeShell tests. It doesn't make sense to mark such things as
-# @VisibleForTesting. For now, just keep everything in org.chromium.
--keep class org.chromium.** {
-  *;
-}
-
-# Keep code annotated with the following annotations.
--keep class * {
-  @**.AccessedByNative <fields>;
-  @**.CalledByNative <methods>;
-  @**.CalledByNativeUnchecked <methods>;
-  @**.JavascriptInterface <methods>;
-  @**.NativeCall <methods>;
-  @**.UsedByReflection <methods>;
-  @**.VisibleForTesting *;
-  native <methods>;
-}
-
-# Keep the client interfaces for cacheinvalidation as they are used as
-# argument types for some of our code that we're keeping and proguard warns
-# otherwise.
--keep class com.google.ipc.invalidation.external.client.** {
-  *;
-}
--keep class  com.google.protos.ipc.invalidation.** {
-  *;
-}
-
-# 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();
-    public static ** valueOf(java.lang.String);
-}
-
-# Keep all Parcelables as they might be marshalled outside Chrome.
--keep class * implements android.os.Parcelable {
-   public static final ** CREATOR;
-}
-
-# SearchView is used in website_preferences_menu.xml and is constructed by
-# Android using reflection.
--keep class android.support.v7.widget.SearchView {
-  public <init>(...);
-}
-
--keep class android.support.v7.app.AlertDialog {
-  public ** getButton(int);
-}
-
-# Google Play Services warnings are about its resources.
--dontwarn com.google.android.gms.R**
-
-# TODO(yfriedman): Remove when crbug.com/488192 is fixed.
--dontwarn org.apache.http.**
-
-# The support library contains references to newer platform versions.
-# Don't warn about those in case this app is linking against an older
-# platform version.  We know about them, and they are safe.
--dontwarn android.support.**
-
--dontwarn javax.annotation.Nullable
-
-# TODO(aurimas): remove this when Google Play Services no longer uses setLatestEventInfo call
-# that was deprecated in Android M. It is save to suppress this according to b/18510449.
--dontwarn android.app.Notification