fix AbstractThreadedSyncAdapter to actually cancel syncs
diff --git a/core/java/android/content/AbstractThreadedSyncAdapter.java b/core/java/android/content/AbstractThreadedSyncAdapter.java
index b01fc08..f4e2a3d 100644
--- a/core/java/android/content/AbstractThreadedSyncAdapter.java
+++ b/core/java/android/content/AbstractThreadedSyncAdapter.java
@@ -105,7 +105,8 @@
             // check it and when we use it
             synchronized (mSyncThreadLock) {
                 if (mSyncThread != null
-                        && mSyncThread.mSyncContext.getISyncContext() == syncContext) {
+                        && mSyncThread.mSyncContext.getISyncContext().asBinder()
+                        == syncContext.asBinder()) {
                     mSyncThread.interrupt();
                 }
             }