Share X connection between GLSurfaceGLX/EGL and MessagePumpX/GTK

ui/gfx/gl/gl_surface_egl.cc

 // Copyright (c) 2011 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 "ui/gfx/gl/gl_surface_egl.h"
 
 #include "build/build_config.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/message_loop.h"
 #if !defined(OS_ANDROID)
 #include "third_party/angle/include/EGL/egl.h"
 #include "third_party/angle/include/EGL/eglext.h"
 #endif
 #include "ui/gfx/gl/egl_util.h"
 
 #if defined(OS_ANDROID)
 #include <EGL/egl.h>
 #endif
 
@@ skipping 29 matching lines @@
 }
 
 bool GLSurfaceEGL::InitializeOneOff() {
   static bool initialized = false;
   if (initialized)
     return true;
 
 #if defined(USE_WAYLAND)
   g_native_display = ui::WaylandDisplay::Connect(NULL)->display();
 #elif defined(USE_X11)
-  g_native_display = XOpenDisplay(NULL);
+  g_native_display = base::MessagePumpForUI::GetDefaultXDisplay();
 #else
   g_native_display = EGL_DEFAULT_DISPLAY;
 #endif
   g_display = eglGetDisplay(g_native_display);
   if (!g_display) {
     LOG(ERROR) << "eglGetDisplay failed with error " << GetLastEGLErrorString();
     return false;
   }
 
   if (!eglInitialize(g_display, NULL, NULL)) {
@@ skipping 311 matching lines @@
                                    EGL_D3D_TEXTURE_2D_SHARE_HANDLE_ANGLE,
                                    &handle)) {
     return NULL;
   }
 
   return handle;
 #endif
 }
 
 }  // namespace gfx