cc: Add checker-imaging support to TileManager.

cc/test/fake_layer_tree_host_impl.h

Index: cc/test/fake_layer_tree_host_impl.h
diff --git a/cc/test/fake_layer_tree_host_impl.h b/cc/test/fake_layer_tree_host_impl.h
index 1a6e01b00c7fcf4c3065853b6775149c0c211961..a67bcfe10bc5c4f5daed62619e99b917d97e653b 100644
--- a/cc/test/fake_layer_tree_host_impl.h
+++ b/cc/test/fake_layer_tree_host_impl.h
@@ -21,6 +21,11 @@ class FakeLayerTreeHostImpl : public LayerTreeHostImpl {
   FakeLayerTreeHostImpl(const LayerTreeSettings& settings,
                         TaskRunnerProvider* task_runner_provider,
                         TaskGraphRunner* task_graph_runner);
+  FakeLayerTreeHostImpl(
+      const LayerTreeSettings& settings,
+      TaskRunnerProvider* task_runner_provider,
+      TaskGraphRunner* task_graph_runner,
+      scoped_refptr<base::SequencedTaskRunner> image_worker_task_runner);
   ~FakeLayerTreeHostImpl() override;
 
   void ForcePrepareToDraw() {