Move GPU device/driver info related code from content to gpu.

content/public/common/dx_diag_node.h

Index: content/public/common/dx_diag_node.h
===================================================================
--- content/public/common/dx_diag_node.h	(revision 201645)
+++ content/public/common/dx_diag_node.h	(working copy)
@@ -1,25 +0,0 @@
-// Copyright (c) 2010 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.
-//
-// A tree of name value pairs that report contain DirectX diagnostic
-// information.
-
-#ifndef CONTENT_PUBLIC_COMMON_DX_DIAG_NODE_H_
-#define CONTENT_PUBLIC_COMMON_DX_DIAG_NODE_H_
-
-#include <map>
-#include <string>
-
-namespace content {
-
-struct DxDiagNode {
-  DxDiagNode();
-  ~DxDiagNode();
-  std::map<std::string, std::string> values;
-  std::map<std::string, DxDiagNode> children;
-};
-
-}  // namespace content
-
-#endif  // CONTENT_PUBLIC_COMMON_DX_DIAG_NODE_H_