Move VISUAL_STATE promise to activation

cc/output/swap_promise.cc

Index: cc/output/swap_promise.cc
diff --git a/cc/output/swap_promise.cc b/cc/output/swap_promise.cc
new file mode 100644
index 0000000000000000000000000000000000000000..069f9e557fe3ea0e18dda74eefdcfdcacd766beb
--- /dev/null
+++ b/cc/output/swap_promise.cc
@@ -0,0 +1,22 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "cc/output/swap_promise.h"
+
+namespace cc {
+
+SwapPromise::~SwapPromise() {
+}
+
+bool SwapPromise::OnDidSwap(CompositorFrameMetadata* metadata) {
+  DidSwap(metadata);
+  return true;
+}
+
+bool SwapPromise::OnDidNotSwap(Promise::DidNotSwap::Reason reason) {
+  DidNotSwap(reason);
+  return true;
+}
+
+}