Changes view manager to report visibility and drawn state

mojo/services/public/cpp/view_manager/lib/view_manager_client_impl.cc

 // Copyright 2014 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 "mojo/services/public/cpp/view_manager/lib/view_manager_client_impl.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/stl_util.h"
@@ skipping 347 matching lines @@
   if (view && relative_view)
     ViewPrivate(view).LocalReorder(relative_view, direction);
 }
 
 void ViewManagerClientImpl::OnViewDeleted(Id view_id) {
   View* view = GetViewById(view_id);
   if (view)
     ViewPrivate(view).LocalDestroy();
 }
 
+void ViewManagerClientImpl::OnViewVisibilityChanged(Id view_id, bool visible) {
+  // TODO(sky): implement me.
+  NOTIMPLEMENTED();
+}
+
+void ViewManagerClientImpl::OnViewDrawnStateChanged(Id view_id, bool drawn) {
+  // TODO(sky): implement me.
+  NOTIMPLEMENTED();
+}
+
 void ViewManagerClientImpl::OnViewInputEvent(
     Id view_id,
     EventPtr event,
     const Callback<void()>& ack_callback) {
   View* view = GetViewById(view_id);
   if (view) {
     FOR_EACH_OBSERVER(ViewObserver,
                       *ViewPrivate(view).observers(),
                       OnViewInputEvent(view, event));
   }
@@ skipping 62 matching lines @@
                     base::Unretained(this));
 }
 
 base::Callback<void(ErrorCode)>
     ViewManagerClientImpl::ActionCompletedCallbackWithErrorCode() {
   return base::Bind(&ViewManagerClientImpl::OnActionCompletedWithErrorCode,
                     base::Unretained(this));
 }
 
 }  // namespace mojo