Fix CompositorResizeLock to do something.

ui/compositor/test/fake_compositor_lock.cc

Index: ui/compositor/test/fake_compositor_lock.cc
diff --git a/ui/compositor/test/fake_compositor_lock.cc b/ui/compositor/test/fake_compositor_lock.cc
new file mode 100644
index 0000000000000000000000000000000000000000..98123c0323479cda8c5f46dcd5b9b3549693ad00
--- /dev/null
+++ b/ui/compositor/test/fake_compositor_lock.cc
@@ -0,0 +1,14 @@
+// Copyright 2017 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 "ui/compositor/test/fake_compositor_lock.h"
+
+namespace ui {
+
+FakeCompositorLock::FakeCompositorLock(
+    CompositorLockClient* client,
+    base::WeakPtr<CompositorLockDelegate> delegate)
+    : CompositorLock(client, delegate) {}
+
+}  // namespace