aura-mus: wire up drag and drop.

ui/views/mus/mus_client.h

 // 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.
 
 #ifndef UI_VIEWS_MUS_MUS_CLIENT_H_
 #define UI_VIEWS_MUS_MUS_CLIENT_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "services/service_manager/public/cpp/identity.h"
 #include "ui/aura/client/capture_client.h"
 #include "ui/aura/mus/window_tree_client_delegate.h"
-#include "ui/base/dragdrop/os_exchange_data_provider_factory.h"
 #include "ui/views/mus/mus_export.h"
 #include "ui/views/mus/screen_mus_delegate.h"
 #include "ui/views/widget/widget.h"
 
 namespace aura {
 class PropertyConverter;
 class Window;
 class WindowTreeClient;
 }
 
@@ skipping 25 matching lines @@
 class NativeWidgetDelegate;
 }
 
 namespace test {
 class MusClientTestApi;
 }
 
 // MusClient establishes a connection to mus and sets up necessary state so that
 // aura and views target mus. This class is useful for typical clients, not the
 // WindowManager. Most clients don't create this directly, rather use AuraInit.
-class VIEWS_MUS_EXPORT MusClient
-    : public aura::WindowTreeClientDelegate,
-      public ScreenMusDelegate,
-      public ui::OSExchangeDataProviderFactory::Factory {
+class VIEWS_MUS_EXPORT MusClient : public aura::WindowTreeClientDelegate,
+                                   public ScreenMusDelegate {
  public:
   // Most clients should use AuraInit, which creates a MusClient.
   // |create_wm_state| indicates whether MusClient should create a wm::WMState.
   MusClient(
       service_manager::Connector* connector,
       const service_manager::Identity& identity,
       scoped_refptr<base::SingleThreadTaskRunner> io_task_runner = nullptr,
       bool create_wm_state = true);
   ~MusClient() override;
 
@@ skipping 50 matching lines @@
   void OnLostConnection(aura::WindowTreeClient* client) override;
   void OnEmbedRootDestroyed(aura::WindowTreeHostMus* window_tree_host) override;
   void OnPointerEventObserved(const ui::PointerEvent& event,
                               aura::Window* target) override;
   aura::PropertyConverter* GetPropertyConverter() override;
 
   // ScreenMusDelegate:
   void OnWindowManagerFrameValuesChanged() override;
   aura::Window* GetWindowAtScreenPoint(const gfx::Point& point) override;
 
-  // ui:OSExchangeDataProviderFactory::Factory:
-  std::unique_ptr<OSExchangeData::Provider> BuildProvider() override;
-
   static MusClient* instance_;
 
   service_manager::Identity identity_;
 
   std::unique_ptr<base::Thread> io_thread_;
 
   base::ObserverList<MusClientObserver> observer_list_;
 
   // NOTE: this may be null (creation is based on argument supplied to
   // constructor).
@@ skipping 10 matching lines @@
 
   std::unique_ptr<discardable_memory::ClientDiscardableSharedMemoryManager>
       discardable_shared_memory_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(MusClient);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_MUS_MUS_CLIENT_H_