Use Sync FakeServer in Android tests via custom APK

chrome/browser/sync/profile_sync_service_android.h

Index: chrome/browser/sync/profile_sync_service_android.h
diff --git a/chrome/browser/sync/profile_sync_service_android.h b/chrome/browser/sync/profile_sync_service_android.h
index 3f651cf74841b0b485c270d7c4a2c91000f856d1..372045088dba99320d7b87a7b0cf93aa4dca17f3 100644
--- a/chrome/browser/sync/profile_sync_service_android.h
+++ b/chrome/browser/sync/profile_sync_service_android.h
@@ -198,6 +198,12 @@ class ProfileSyncServiceAndroid : public ProfileSyncServiceObserver {
   // the internal value of base::Time.
   jlong GetLastSyncedTimeForTest(JNIEnv* env, jobject obj);
 
+  // Overrides ProfileSyncService's NetworkResources object. This is used to
+  // set up the Sync FakeServer for testing.
+  void OverrideNetworkResourcesForTest(JNIEnv* env,
+                                       jobject obj,
+                                       jlong network_resources);
+
   static ProfileSyncServiceAndroid* GetProfileSyncServiceAndroid();
 
   // Registers the ProfileSyncServiceAndroid's native methods through JNI.