Ozone: Dont hardcode format to YUV when using Overlay Composition.

ui/ozone/platform/drm/gpu/hardware_display_plane_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 UI_OZONE_PLATFORM_DRM_GPU_HARDWARE_DISPLAY_PLANE_MANAGER_H_
 #define UI_OZONE_PLATFORM_DRM_GPU_HARDWARE_DISPLAY_PLANE_MANAGER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 #include <xf86drmMode.h>
@@ skipping 79 matching lines @@
 
   // Commit the plane states in |plane_list|.
   virtual bool Commit(HardwareDisplayPlaneList* plane_list,
                       bool test_only) = 0;
 
   const ScopedVector<HardwareDisplayPlane>& planes() { return planes_; }
 
   std::vector<uint32_t> GetCompatibleHardwarePlaneIds(const OverlayPlane& plane,
                                                       uint32_t crtc_id) const;
 
+  bool IsFormatSupported(uint32_t fourcc_format,
+                         uint32_t z_order,
+                         uint32_t crtc_id) const;
+
  protected:
   virtual bool SetPlaneData(HardwareDisplayPlaneList* plane_list,
                             HardwareDisplayPlane* hw_plane,
                             const OverlayPlane& overlay,
                             uint32_t crtc_id,
                             const gfx::Rect& src_rect,
                             CrtcController* crtc) = 0;
 
   virtual scoped_ptr<HardwareDisplayPlane> CreatePlane(uint32_t plane_id,
                                                        uint32_t possible_crtcs);
@@ skipping 21 matching lines @@
 
   ScopedVector<HardwareDisplayPlane> planes_;
   std::vector<uint32_t> crtcs_;
 
   DISALLOW_COPY_AND_ASSIGN(HardwareDisplayPlaneManager);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_DRM_GPU_HARDWARE_DISPLAY_PLANE_MANAGER_H_