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diff --git a/gpu/command_buffer/service/x_utils.cc b/gpu/command_buffer/service/x_utils.cc
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+++ b/gpu/command_buffer/service/x_utils.cc
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+/*
+ * Copyright 2009, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+// This class implements the XWindowWrapper class.
+
+#include "gpu/command_buffer/service/precompile.h"
+#include "gpu/command_buffer/common/cross/logging.h"
+#include "gpu/command_buffer/service/linux/x_utils.h"
+
+namespace command_buffer {
+
+bool XWindowWrapper::Initialize() {
+  XWindowAttributes attributes;
+  XGetWindowAttributes(display_, window_, &attributes);
+  XVisualInfo visual_info_template;
+  visual_info_template.visualid = XVisualIDFromVisual(attributes.visual);
+  int visual_info_count = 0;
+  XVisualInfo *visual_info_list = XGetVisualInfo(display_, VisualIDMask,
+                                                 &visual_info_template,
+                                                 &visual_info_count);
+  DCHECK(visual_info_list);
+  DCHECK_GT(visual_info_count, 0);
+  context_ = 0;
+  for (int i = 0; i < visual_info_count; ++i) {
+    context_ = glXCreateContext(display_, visual_info_list + i, 0,
+                                True);
+    if (context_) break;
+  }
+  XFree(visual_info_list);
+  if (!context_) {
+    DLOG(ERROR) << "Couldn't create GL context.";
+    return false;
+  }
+  return true;
+}
+
+bool XWindowWrapper::MakeCurrent() {
+  if (glXMakeCurrent(display_, window_, context_) != True) {
+    glXDestroyContext(display_, context_);
+    context_ = 0;
+    DLOG(ERROR) << "Couldn't make context current.";
+    return false;
+  }
+  return true;
+}
+
+void XWindowWrapper::Destroy() {
+  Bool result = glXMakeCurrent(display_, 0, 0);
+  // glXMakeCurrent isn't supposed to fail when unsetting the context, unless
+  // we have pending draws on an invalid window - which shouldn't be the case
+  // here.
+  DCHECK(result);
+  if (context_) {
+    glXDestroyContext(display_, context_);
+    context_ = 0;
+  }
+}
+
+void XWindowWrapper::SwapBuffers() {
+  glXSwapBuffers(display_, window_);
+}
+
+}  // namespace command_buffer