Remove #pragma once from content

content/common/android/device_info.h

 // 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.
 
 #ifndef CONTENT_COMMON_ANDROID_DEVICE_INFO_H_
 #define CONTENT_COMMON_ANDROID_DEVICE_INFO_H_
-#pragma once
 
 #include <jni.h>
 #include <string>
 
 #include "base/android/scoped_java_ref.h"
 #include "base/basictypes.h"
 
 namespace content {
 
 // Facilitates access to device information typically only
@@ skipping 15 matching lines @@
   base::android::ScopedJavaGlobalRef<jobject> j_device_info_;
 
   DISALLOW_COPY_AND_ASSIGN(DeviceInfo);
 };
 
 bool RegisterDeviceInfo(JNIEnv* env);
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_ANDROID_DEVICE_INFO_H_