Creates mus test helper class

components/mus/public/cpp/tests/window_tree_client_impl_unittest.cc

 // 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 "components/mus/public/cpp/lib/window_tree_client_impl.h"
 
 #include <stdint.h>
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "components/mus/common/util.h"
 #include "components/mus/public/cpp/input_event_handler.h"
 #include "components/mus/public/cpp/lib/window_private.h"
 #include "components/mus/public/cpp/property_type_converters.h"
 #include "components/mus/public/cpp/tests/test_window.h"
 #include "components/mus/public/cpp/tests/test_window_tree.h"
+#include "components/mus/public/cpp/tests/window_tree_client_impl_private.h"
 #include "components/mus/public/cpp/window.h"
 #include "components/mus/public/cpp/window_observer.h"
 #include "components/mus/public/cpp/window_property.h"
 #include "components/mus/public/cpp/window_tracker.h"
 #include "components/mus/public/cpp/window_tree_delegate.h"
 #include "mojo/common/common_type_converters.h"
 #include "mojo/converters/geometry/geometry_type_converters.h"
 #include "mojo/converters/input_events/input_events_type_converters.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/events/event.h"
@@ skipping 36 matching lines @@
   void OnEventObserved(const ui::Event& event, Window* target) override {
     last_event_observed_ = ui::Event::Clone(event);
   }
 
  private:
   std::unique_ptr<ui::Event> last_event_observed_;
 
   DISALLOW_COPY_AND_ASSIGN(TestWindowTreeDelegate);
 };
 
-class WindowTreeClientImplPrivate {
- public:
-  WindowTreeClientImplPrivate(WindowTreeClientImpl* tree_client_impl)
-      : tree_client_impl_(tree_client_impl) {}
-  ~WindowTreeClientImplPrivate() {}
-
-  void Init(mojom::WindowTree* window_tree) {
-    mojom::WindowDataPtr root_data(mojom::WindowData::New());
-    root_data->parent_id = 0;
-    root_data->window_id = 1;
-    root_data->bounds = mojo::Rect::From(gfx::Rect());
-    root_data->properties.SetToEmpty();
-    root_data->visible = true;
-    root_data->viewport_metrics = mojom::ViewportMetrics::New();
-    root_data->viewport_metrics->size_in_pixels =
-        mojo::Size::From(gfx::Size(1000, 1000));
-    root_data->viewport_metrics->device_pixel_ratio = 1;
-    tree_client_impl_->OnEmbedImpl(window_tree, 1, std::move(root_data), 0,
-                                   true);
-  }
-
-  uint32_t event_observer_id() { return tree_client_impl_->event_observer_id_; }
-
- private:
-  WindowTreeClientImpl* tree_client_impl_;
-
-  DISALLOW_COPY_AND_ASSIGN(WindowTreeClientImplPrivate);
-};
-
 class WindowTreeSetup {
  public:
   WindowTreeSetup() : tree_client_(&window_tree_delegate_, nullptr, nullptr) {
-    WindowTreeClientImplPrivate(&tree_client_).Init(&window_tree_);
+    WindowTreeClientImplPrivate(&tree_client_).OnEmbed(&window_tree_);
     window_tree_.GetAndClearChangeId(nullptr);
   }
 
   WindowTreeConnection* window_tree_connection() {
     return static_cast<WindowTreeConnection*>(&tree_client_);
   }
 
   mojom::WindowTreeClient* window_tree_client() {
     return static_cast<mojom::WindowTreeClient*>(&tree_client_);
   }
@@ skipping 934 matching lines @@
 
   setup.window_tree_client()->OnChangeCompleted(change_id2, false);
   EXPECT_FALSE(child->HasCapture());
   EXPECT_TRUE(root->HasCapture());
 
   setup.window_tree_client()->OnLostCapture(server_id(root));
   EXPECT_FALSE(root->HasCapture());
 }
 
 }  // namespace mus