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

gpu/config/gpu_info.cc

 // Copyright (c) 2012 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 "content/public/common/gpu_info.h"
+#include "gpu/config/gpu_info.h"
 
-namespace content {
+namespace gpu {
 
 GPUInfo::GPUDevice::GPUDevice()
     : vendor_id(0),
       device_id(0) {
 }
 
 GPUInfo::GPUDevice::~GPUDevice() { }
 
 GPUInfo::GPUInfo()
     : finalized(false),
       optimus(false),
       amd_switchable(false),
       lenovo_dcute(false),
       can_lose_context(false),
       gpu_accessible(true),
       software_rendering(false),
       sandboxed(false) {
 }
 
 GPUInfo::~GPUInfo() { }
 
-}  // namespace content
+}  // namespace gpu