mus Window Server: implement event capture

components/mus/ws/display_manager.h

 // 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.
 
 #ifndef COMPONENTS_MUS_WS_DISPLAY_MANAGER_H_
 #define COMPONENTS_MUS_WS_DISPLAY_MANAGER_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 59 matching lines @@
   virtual void Init(DisplayManagerDelegate* delegate) = 0;
 
   // Schedules a paint for the specified region in the coordinates of |window|.
   virtual void SchedulePaint(const ServerWindow* window,
                              const gfx::Rect& bounds) = 0;
 
   virtual void SetViewportSize(const gfx::Size& size) = 0;
 
   virtual void SetTitle(const base::string16& title) = 0;
 
+  virtual void SetCapture() = 0;
+
+  virtual void ReleaseCapture() = 0;
+
   virtual void SetCursorById(int32_t cursor) = 0;
 
   virtual mojom::Rotation GetRotation() = 0;
 
   virtual const mojom::ViewportMetrics& GetViewportMetrics() = 0;
 
   virtual void UpdateTextInputState(const ui::TextInputState& state) = 0;
   virtual void SetImeVisibility(bool visible) = 0;
 
   // Returns true if a compositor frame has been submitted but not drawn yet.
@@ skipping 22 matching lines @@
                         const scoped_refptr<GpuState>& gpu_state,
                         const scoped_refptr<SurfacesState>& surfaces_state);
   ~DefaultDisplayManager() override;
 
   // DisplayManager:
   void Init(DisplayManagerDelegate* delegate) override;
   void SchedulePaint(const ServerWindow* window,
                      const gfx::Rect& bounds) override;
   void SetViewportSize(const gfx::Size& size) override;
   void SetTitle(const base::string16& title) override;
+  void SetCapture() override;
+  void ReleaseCapture() override;
   void SetCursorById(int32_t cursor) override;
   const mojom::ViewportMetrics& GetViewportMetrics() override;
   mojom::Rotation GetRotation() override;
   void UpdateTextInputState(const ui::TextInputState& state) override;
   void SetImeVisibility(bool visible) override;
   bool IsFramePending() const override;
   void RequestCopyOfOutput(
       scoped_ptr<cc::CopyOutputRequest> output_request) override;
 
  private:
@@ skipping 44 matching lines @@
   base::WeakPtrFactory<DefaultDisplayManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DefaultDisplayManager);
 };
 
 }  // namespace ws
 
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_WS_DISPLAY_MANAGER_H_