Atomic: Don’t keep track of Cursor planes

ui/ozone/platform/drm/gpu/hardware_display_plane.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 UI_OZONE_PLATFORM_DRM_GPU_HARDWARE_DISPLAY_PLANE_H_
 #define UI_OZONE_PLATFORM_DRM_GPU_HARDWARE_DISPLAY_PLANE_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/basictypes.h"
 #include "ui/ozone/ozone_export.h"
 #include "ui/ozone/platform/drm/common/scoped_drm_types.h"
 
 namespace gfx {
 class Rect;
 }
 
 namespace ui {
 
 class DrmDevice;
 
 class OZONE_EXPORT HardwareDisplayPlane {
  public:
+  enum Type { Primary, Overlay, Cursor, Dummy };

[dnicoara, 2015/08/20 14:22:45]

As per the coding guide, please use MACRO_STYLE for enum values.

[kalyank, 2015/08/20 16:36:18]

Done.

+
   HardwareDisplayPlane(uint32_t plane_id, uint32_t possible_crtcs);
 
   virtual ~HardwareDisplayPlane();
 
-  virtual bool Initialize(DrmDevice* drm, const std::vector<uint32_t>& formats);
+  virtual bool Initialize(DrmDevice* drm,
+                          const std::vector<uint32_t>& formats,
+                          bool is_dummy);
 
   virtual bool IsSupportedFormat(uint32_t format) const;
 
   bool CanUseForCrtc(uint32_t crtc_index);
 
   bool in_use() const { return in_use_; }
   void set_in_use(bool in_use) { in_use_ = in_use; }
 
-  bool is_dummy() const { return is_dummy_; }
-  void set_is_dummy(bool is_dummy) { is_dummy_ = is_dummy; }
+  uint32_t plane_id() const { return plane_id_; }
 
-  uint32_t plane_id() const { return plane_id_; }
+  Type type() const { return type_; }
 
   void set_owning_crtc(uint32_t crtc) { owning_crtc_ = crtc; }
   uint32_t owning_crtc() const { return owning_crtc_; }
 
  protected:
   uint32_t plane_id_ = 0;
   uint32_t possible_crtcs_ = 0;
   uint32_t owning_crtc_ = 0;
   bool in_use_ = false;
-  bool is_dummy_ = false;
+  Type type_ = Primary;
 
   DISALLOW_COPY_AND_ASSIGN(HardwareDisplayPlane);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_DRM_GPU_HARDWARE_DISPLAY_PLANE_H_