Make Android HttpNegotiateAuthenticator work without an activity

base/android/java/src/org/chromium/base/ApplicationStatus.java

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.base;
 
 import android.app.Activity;
 import android.app.Application;
 import android.app.Application.ActivityLifecycleCallbacks;
 import android.content.Context;
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     /**
      * Unregisters the given listener from receiving state changes.
      * @param listener Listener that doesn't want to receive state changes.
      */
     public static void unregisterApplicationStateListener(ApplicationStateListener listener) {
         sApplicationStateListeners.removeObserver(listener);
     }
 
     /**
+     * Robolectric JUnit tests create a new application between each test, while all the context
+     * in static classes isn't reset. This function allows to reset the application status to avoid
+     * being in a dirty state.
+     */
+    public static void destroyForJUnitTests() {
+        sApplicationStateListeners.clear();
+        sGeneralActivityStateListeners.clear();
+        sActivityInfo.clear();
+        synchronized (sCachedApplicationStateLock) {
+            sCachedApplicationState = null;
+        }
+        sActivity = null;
+        sApplication = null;
+        sNativeApplicationStateListener = null;
+    }
+
+    /**
      * Registers the single thread-safe native activity status listener.
      * This handles the case where the caller is not on the main thread.
      * Note that this is used by a leaky singleton object from the native
      * side, hence lifecycle management is greatly simplified.
      */
     @CalledByNative
     private static void registerThreadSafeNativeApplicationStateListener() {
         ThreadUtils.runOnUiThread(new Runnable() {
             @Override
             public void run() {
@@ skipping 38 matching lines @@
 
         if (hasPausedActivity) return ApplicationState.HAS_PAUSED_ACTIVITIES;
         if (hasStoppedActivity) return ApplicationState.HAS_STOPPED_ACTIVITIES;
         return ApplicationState.HAS_DESTROYED_ACTIVITIES;
     }
 
     // Called to notify the native side of state changes.
     // IMPORTANT: This is always called on the main thread!
     private static native void nativeOnApplicationStateChange(int newState);
 }