Gets mash to use WmToplevelWindowEventHandler

mash/wm/drag_window_resizer.cc

Index: mash/wm/drag_window_resizer.cc
diff --git a/mash/wm/drag_window_resizer.cc b/mash/wm/drag_window_resizer.cc
new file mode 100644
index 0000000000000000000000000000000000000000..3fc53360f089577a11a10aa0a891b1d51cb2d4c1
--- /dev/null
+++ b/mash/wm/drag_window_resizer.cc
@@ -0,0 +1,40 @@
+// Copyright 2016 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 "mash/wm/drag_window_resizer.h"
+
+namespace mash {
+namespace wm {
+
+DragWindowResizer::DragWindowResizer(
+    std::unique_ptr<WindowResizer> next_window_resizer,
+    ash::wm::WindowState* window_state)
+    : WindowResizer(window_state),
+      next_window_resizer_(std::move(next_window_resizer)) {}
+
+DragWindowResizer::~DragWindowResizer() {
+  if (window_state_)
+    window_state_->DeleteDragDetails();
+}
+
+void DragWindowResizer::Drag(const gfx::Point& location, int event_flags) {
+  next_window_resizer_->Drag(location, event_flags);
+  // http://crbug.com/613199.

[James Cook, 2016/05/23 21:53:34]

Nice to see bugs filed for notimplementeds.

+  NOTIMPLEMENTED();
+}
+
+void DragWindowResizer::CompleteDrag() {
+  next_window_resizer_->CompleteDrag();
+  // http://crbug.com/613199.
+  NOTIMPLEMENTED();
+}
+
+void DragWindowResizer::RevertDrag() {
+  next_window_resizer_->RevertDrag();
+  // http://crbug.com/613199.
+  NOTIMPLEMENTED();
+}
+
+}  // namespace wm
+}  // namespace mash