WIP: Propagate SurfaceID up window tree hierarchy

services/ui/ws/server_window.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 "services/ui/ws/server_window.h"
 
 #include <inttypes.h>
 #include <stddef.h>
 
 #include "base/strings/stringprintf.h"
@@ skipping 320 matching lines @@
                     OnWindowSharedPropertyChanged(this, name, value));
 }
 
 std::string ServerWindow::GetName() const {
   auto it = properties_.find(mojom::WindowManager::kName_Property);
   if (it == properties_.end())
     return std::string();
   return std::string(it->second.begin(), it->second.end());
 }
 
+bool ServerWindow::IsContainer() const {
+  auto it = properties_.find(mojom::WindowManager::kContainer_Property);
+  if (it == properties_.end())
+    return false;
+  return true;
+}
+
 void ServerWindow::SetTextInputState(const ui::TextInputState& state) {
   const bool changed = !(text_input_state_ == state);
   if (changed) {
     text_input_state_ = state;
     // keyboard even if the state is not changed. So we have to notify
     // |observers_|.
     FOR_EACH_OBSERVER(ServerWindowObserver, observers_,
                       OnWindowTextInputStateChanged(this, state));
   }
 }
@@ skipping 111 matching lines @@
 }
 
 // static
 ServerWindow** ServerWindow::GetStackingTarget(ServerWindow* window) {
   return &window->stacking_target_;
 }
 
 }  // namespace ws
 
 }  // namespace ui