ozone: Consolidate primary plane format.

ui/display/types/display_snapshot.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_DISPLAY_TYPES_DISPLAY_SNAPSHOT_H_
 #define UI_DISPLAY_TYPES_DISPLAY_SNAPSHOT_H_
 
 #include <stdint.h>
 
 #include <vector>
 
 #include "base/files/file_path.h"
 #include "base/macros.h"
 #include "ui/display/types/display_constants.h"
 #include "ui/display/types/display_mode.h"
+#include "ui/gfx/buffer_types.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace ui {
 
 // This class represents the state of a display at one point in time. Platforms
 // will extend this class in order to add platform specific configuration and
 // identifiers required to configure this display.
 class DISPLAY_TYPES_EXPORT DisplaySnapshot {
  public:
@@ skipping 44 matching lines @@
   bool has_color_correction_matrix() const {
     return has_color_correction_matrix_;
   }
 
   // Returns a textual representation of this display state.
   virtual std::string ToString() const = 0;
 
   // Used when no product id known.
   static const int64_t kInvalidProductID = -1;
 
+  // Return the buffer format to be used for the primary
+  // plane buffer.
+  static gfx::BufferFormat PrimaryFormat();
+
  protected:
   // Display id for this output.
   int64_t display_id_;
 
   // Display's origin on the framebuffer.
   gfx::Point origin_;
 
   gfx::Size physical_size_;
 
   DisplayConnectionType type_;
@@ skipping 25 matching lines @@
 
   // Maximum supported cursor size on this display.
   gfx::Size maximum_cursor_size_;
 
   DISALLOW_COPY_AND_ASSIGN(DisplaySnapshot);
 };
 
 }  // namespace ui
 
 #endif  // UI_DISPLAY_TYPES_DISPLAY_SNAPSHOT_H_