[SyncFS] Wire up LocalChangeProcessor to SyncTask

chrome/browser/sync_file_system/drive_backend/list_changes_task_unittest.cc

Index: chrome/browser/sync_file_system/drive_backend/list_changes_task_unittest.cc
diff --git a/chrome/browser/sync_file_system/drive_backend/list_changes_task_unittest.cc b/chrome/browser/sync_file_system/drive_backend/list_changes_task_unittest.cc
index fb7b6ccc046e767e1bf2ea37eb924b0f5014353c..a1e0be5794a636298e2557f3c228fe5c728aecbb 100644
--- a/chrome/browser/sync_file_system/drive_backend/list_changes_task_unittest.cc
+++ b/chrome/browser/sync_file_system/drive_backend/list_changes_task_unittest.cc
@@ -68,6 +68,10 @@ class ListChangesTaskTest : public testing::Test,
     return metadata_database_.get();
   }
 
+  virtual RemoteChangeProcessor* GetRemoteChangeProcessor() OVERRIDE {
+    return NULL;
+  }
+
   int64 GetRemoteLargestChangeID() {
     scoped_ptr<google_apis::AboutResource> about_resource;
     EXPECT_EQ(google_apis::HTTP_SUCCESS,