Fix kernel version condition for including dma-buf.h

ui/gfx/linux/client_native_pixmap_dmabuf.cc

 // Copyright 2016 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/linux/client_native_pixmap_dmabuf.h"
 
 #include <fcntl.h>
 #include <linux/version.h>
 #include <stddef.h>
 #include <sys/ioctl.h>
 #include <sys/mman.h>
 #include <xf86drm.h>
 
 #include "base/debug/crash_logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/posix/eintr_wrapper.h"
 #include "base/process/memory.h"
 #include "base/process/process_metrics.h"
 #include "base/strings/stringprintf.h"
 #include "base/trace_event/trace_event.h"
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 6, 0)
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0)
 #include <linux/dma-buf.h>
 #else
 #include <linux/types.h>
 
 struct dma_buf_sync {
   __u64 flags;
 };
 
 #define DMA_BUF_SYNC_READ (1 << 0)
 #define DMA_BUF_SYNC_WRITE (2 << 0)
@@ skipping 122 matching lines @@
   uint8_t* address = reinterpret_cast<uint8_t*>(data_);
   return address + pixmap_handle_.planes[plane].offset;
 }
 
 int ClientNativePixmapDmaBuf::GetStride(size_t plane) const {
   DCHECK_LT(plane, pixmap_handle_.planes.size());
   return pixmap_handle_.planes[plane].stride;
 }
 
 }  // namespace gfx