mus: Implement interwindow drag and drop

services/ui/ws/test_utils.cc

 // 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 "services/ui/ws/test_utils.h"
 
 #include <utility>
 
 #include "base/memory/ptr_util.h"
 #include "cc/output/copy_output_request.h"
@@ skipping 331 matching lines @@
 void TestWindowTreeClient::OnWindowFocused(uint32_t focused_window_id) {
   tracker_.OnWindowFocused(focused_window_id);
 }
 
 void TestWindowTreeClient::OnWindowPredefinedCursorChanged(
     uint32_t window_id,
     mojom::Cursor cursor_id) {
   tracker_.OnWindowPredefinedCursorChanged(window_id, cursor_id);
 }
 
+void TestWindowTreeClient::OnDragEnter(
+    uint32_t window,
+    mojo::Map<mojo::String, mojo::Array<uint8_t>> drag_data,
+    uint32_t key_state,
+    const gfx::Point& position,
+    uint32_t effect_bitmask,
+    const OnDragEnterCallback& callback) {}
+
+void TestWindowTreeClient::OnDragOver(uint32_t window,
+                                      uint32_t key_state,
+                                      const gfx::Point& position,
+                                      uint32_t effect_bitmask,
+                                      const OnDragOverCallback& callback) {}
+void TestWindowTreeClient::OnDragLeave(uint32_t window) {}
+void TestWindowTreeClient::OnDragDrop(uint32_t window,
+                                      uint32_t key_state,
+                                      const gfx::Point& position,
+                                      uint32_t effect_bitmask,
+                                      const OnDragDropCallback& callback) {}
+
 void TestWindowTreeClient::OnChangeCompleted(uint32_t change_id, bool success) {
   if (record_on_change_completed_)
     tracker_.OnChangeCompleted(change_id, success);
 }
 
 void TestWindowTreeClient::RequestClose(uint32_t window_id) {}
 
 void TestWindowTreeClient::GetWindowManager(
     mojo::AssociatedInterfaceRequest<mojom::WindowManager> internal) {}
 
@@ skipping 180 matching lines @@
     return nullptr;
   if (!tree->AddWindow(parent_client_id, client_window_id))
     return nullptr;
   *client_id = client_window_id;
   return tree->GetWindowByClientId(client_window_id);
 }
 
 }  // namespace test
 }  // namespace ws
 }  // namespace ui