Give user ability to file a feedback report from the display error notification.

ui/display/chromeos/x11/display_snapshot_x11.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_CHROMEOS_X11_DISPLAY_SNAPSHOT_X11_H_
 #define UI_DISPLAY_CHROMEOS_X11_DISPLAY_SNAPSHOT_X11_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
 #include "ui/display/display_export.h"
 #include "ui/display/types/display_snapshot.h"
 
 // Forward declare from Xlib and Xrandr.
 typedef unsigned long XID;
 typedef XID RROutput;
 typedef XID RRCrtc;
 
 namespace ui {
 
 class DISPLAY_EXPORT DisplaySnapshotX11 : public DisplaySnapshot {

[oshima, 2016/01/27 09:18:15]

Aren't these x11 file dead code?

[afakhry, 2016/01/29 02:16:51]

It's probably dear. It gets compiled in linux though.

[dnicoara, 2016/01/29 14:29:31]

Unfortunately not dead yet :( ... nyan is still X11 and waiting on the graphics
driver to be in good shape: crbug.com/478339

  public:
   DisplaySnapshotX11(int64_t display_id,
                      const gfx::Point& origin,
                      const gfx::Size& physical_size,
                      DisplayConnectionType type,
                      bool is_aspect_preserving_scaling,
                      bool has_overscan,
                      std::string display_name,
                      const std::vector<const DisplayMode*>& modes,
+                     const std::vector<uint8_t>& edid,
                      const DisplayMode* current_mode,
                      const DisplayMode* native_mode,
                      RROutput output,
                      RRCrtc crtc,
                      int index);
   ~DisplaySnapshotX11() override;
 
   RROutput output() const { return output_; }
   RRCrtc crtc() const { return crtc_; }
   int index() const { return index_; }
@@ skipping 11 matching lines @@
   // This output's index in the array returned by XRandR. Stable even as
   // outputs are connected or disconnected.
   int index_;
 
   DISALLOW_COPY_AND_ASSIGN(DisplaySnapshotX11);
 };
 
 }  // namespace ui
 
 #endif  // UI_DISPLAY_CHROMEOS_X11_DISPLAY_SNAPSHOT_X11_H_