Revert "4/N Remove #handleWtfs from PluginInitializer."

Revert submission 15560568-b194781951-flags-8

Reason for revert: Broken build.
Reverted Changes:
Ie522ae3cc:5/N Remove PluginInitializer entirely.
Icaeaaee28:4/N Remove #handleWtfs from PluginInitializer.
I1c86c246c:3/N Remove #getPrivilegedPlugins from PluginInitia...
Id525f27e3:2/N Rename PluginInstanceManager to PluginActionMa...

Change-Id: Ia5f864646ee8806ec4080349dda3d71c827c1e40

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

@@ -212,6 +212,7 @@ public class PluginActionManager<T extends Plugin> {
     private void onPluginConnected(PluginInstance<T> pluginInstance) {
         if (DEBUG) Log.d(TAG, "onPluginConnected");
         PluginPrefs.setHasPlugins(mContext);
+        mInitializer.handleWtfs();
         pluginInstance.onCreate(mContext, mListener);
     }
 

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

@@ -18,4 +18,9 @@ package com.android.systemui.shared.plugins;
  * Provides necessary components for initializing {@link PluginManagerImpl}.
  */
 public interface PluginInitializer {
+
+    /**
+     * Called from {@link PluginActionManager}.
+     */
+    void handleWtfs();
 }

packages/SystemUI/src/com/android/systemui/plugins/PluginInitializerImpl.java

@@ -14,7 +14,10 @@
 
 package com.android.systemui.plugins;
 
+import android.util.Log;
+
 import com.android.systemui.shared.plugins.PluginInitializer;
+import com.android.systemui.shared.plugins.PluginManagerImpl;
 
 import javax.inject.Inject;
 import javax.inject.Singleton;
@@ -22,8 +25,25 @@ import javax.inject.Singleton;
 /** */
 @Singleton
 public class PluginInitializerImpl implements PluginInitializer {
+
+    /**
+     * True if WTFs should lead to crashes
+     */
+    private static final boolean WTFS_SHOULD_CRASH = false;
+    private boolean mWtfsSet;
+
     @Inject
     public PluginInitializerImpl(PluginDependencyProvider  dependencyProvider) {
         dependencyProvider.allowPluginDependency(ActivityStarter.class);
     }
+
+    @Override
+    public void handleWtfs() {
+        if (WTFS_SHOULD_CRASH && !mWtfsSet) {
+            mWtfsSet = true;
+            Log.setWtfHandler((tag, what, system) -> {
+                throw new PluginManagerImpl.CrashWhilePluginActiveException(what);
+            });
+        }
+    }
 }