mus: Implement interwindow drag and drop

services/ui/ws/window_tree_client_unittest.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 <stddef.h>
 #include <stdint.h>
 
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 353 matching lines @@
                                      const String& name,
                                      Array<uint8_t> new_data) override {
     tracker_.OnWindowSharedPropertyChanged(window, name, std::move(new_data));
   }
   // TODO(sky): add testing coverage.
   void OnWindowFocused(uint32_t focused_window_id) override {}
   void OnWindowPredefinedCursorChanged(uint32_t window_id,
                                        mojom::Cursor cursor_id) override {
     tracker_.OnWindowPredefinedCursorChanged(window_id, cursor_id);
   }
+
+  void OnDragStart(
+      uint32_t window,
+      mojo::Map<mojo::String, mojo::Array<uint8_t>> drag_data) override {
+    NOTIMPLEMENTED();
+  }
+
+  void OnDragEnter(uint32_t window,
+                   uint32_t key_state,
+                   const gfx::Point& position,
+                   uint32_t effect_bitmask,
+                   const OnDragEnterCallback& callback) override {
+    NOTIMPLEMENTED();
+  }
+  void OnDragOver(uint32_t window,
+                  uint32_t key_state,
+                  const gfx::Point& position,
+                  uint32_t effect_bitmask,
+                  const OnDragOverCallback& callback) override {
+    NOTIMPLEMENTED();
+  }
+  void OnDragLeave(uint32_t window) override { NOTIMPLEMENTED(); }
+  void OnDragDrop(uint32_t window,
+                  uint32_t key_state,
+                  const gfx::Point& position,
+                  uint32_t effect_bitmask,
+                  const OnDragDropCallback& callback) override {
+    NOTIMPLEMENTED();
+  }
+  void OnDragFinish(uint32_t window) override { NOTIMPLEMENTED(); }
+
   void OnChangeCompleted(uint32_t change_id, bool success) override {
     if (waiting_change_id_ == change_id && change_completed_run_loop_) {
       on_change_completed_result_ = success;
       change_completed_run_loop_->Quit();
     }
   }
   void RequestClose(uint32_t window_id) override {}
   void GetWindowManager(mojo::AssociatedInterfaceRequest<mojom::WindowManager>
                             internal) override {
     window_manager_binding_.reset(
@@ skipping 1660 matching lines @@
 
 // TODO(sky): make sure coverage of what was
 // WindowManagerTest.SecondEmbedRoot_InitService and
 // WindowManagerTest.MultipleEmbedRootsBeforeWTHReady gets added to window
 // manager
 // tests.
 
 }  // namespace test
 }  // namespace ws
 }  // namespace ui