Make Android HttpNegotiateAuthenticator work without an activity

Fallback on the various alternatives to
AccountManager#getAuthTokenByFeatures that don't require an
activity when we don't have one. This will allow using this
authenticator in WebView.

BUG=533513

Review URL: https://codereview.chromium.org/1422693002

Cr-Commit-Position: refs/heads/master@{#361871}

1 files changed, 17 insertions, 0 deletions

diff --git a/base/android/java/src/org/chromium/base/ApplicationStatus.java b/base/android/java/src/org/chromium/base/ApplicationStatus.java
index 9f77595..d6da142 100644
--- a/base/android/java/src/org/chromium/base/ApplicationStatus.java
+++ b/base/android/java/src/org/chromium/base/ApplicationStatus.java
@@ -393,6 +393,23 @@ public class ApplicationStatus {
     }
 
     /**
+     * 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