gpu/config: Use angle::GetSystemInfo on Linux

gpu/config/gpu_info_collector_x11.cc

Index: gpu/config/gpu_info_collector_x11.cc
diff --git a/gpu/config/gpu_info_collector_x11.cc b/gpu/config/gpu_info_collector_x11.cc
deleted file mode 100644
index 38fa72f74dc82b18a573c12810e08ae18c7c50b8..0000000000000000000000000000000000000000
--- a/gpu/config/gpu_info_collector_x11.cc
+++ /dev/null
@@ -1,43 +0,0 @@
-// 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.
-
-#include <X11/Xlib.h>
-
-#include "base/logging.h"
-#include "gpu/config/gpu_info_collector_linux.h"
-#include "third_party/libXNVCtrl/NVCtrl.h"
-#include "third_party/libXNVCtrl/NVCtrlLib.h"
-#include "ui/gfx/x/x11_types.h"
-
-namespace gpu {
-
-// Use NVCtrl extention to query NV driver version.
-// Return empty string on failing.
-std::string CollectDriverVersionNVidia() {
-  Display* display = gfx::GetXDisplay();
-  if (!display) {
-    LOG(ERROR) << "XOpenDisplay failed.";
-    return std::string();
-  }
-  int event_base = 0, error_base = 0;
-  if (!XNVCTRLQueryExtension(display, &event_base, &error_base)) {
-    VLOG(1) << "NVCtrl extension does not exist.";
-    return std::string();
-  }
-  int screen_count = ScreenCount(display);
-  for (int screen = 0; screen < screen_count; ++screen) {
-    char* buffer = NULL;
-    if (XNVCTRLIsNvScreen(display, screen) &&
-        XNVCTRLQueryStringAttribute(display, screen, 0,
-                                    NV_CTRL_STRING_NVIDIA_DRIVER_VERSION,
-                                    &buffer)) {
-      std::string driver_version(buffer);
-      XFree(buffer);
-      return driver_version;
-    }
-  }
-  return std::string();
-}
-
-}  // namespace gpu