Use OS_LINUX instead of USE_OZONE in ui/gfx/ when possible

ui/gfx/native_pixmap_handle.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/native_pixmap_handle.h"
 
-#if defined(USE_OZONE)
+#if defined(OS_LINUX)
 #include "base/posix/eintr_wrapper.h"
 #endif
 
 namespace gfx {
 
 NativePixmapPlane::NativePixmapPlane()
     : stride(0), offset(0), size(0), modifier(0) {}
 
 NativePixmapPlane::NativePixmapPlane(int stride,
                                      int offset,
                                      uint64_t size,
                                      uint64_t modifier)
     : stride(stride), offset(offset), size(size), modifier(modifier) {}
 
 NativePixmapPlane::NativePixmapPlane(const NativePixmapPlane& other) = default;
 
 NativePixmapPlane::~NativePixmapPlane() {}
 
 NativePixmapHandle::NativePixmapHandle() {}
 NativePixmapHandle::NativePixmapHandle(const NativePixmapHandle& other) =
     default;
 
 NativePixmapHandle::~NativePixmapHandle() {}
 
-#if defined(USE_OZONE)
+#if defined(OS_LINUX)
 NativePixmapHandle CloneHandleForIPC(const NativePixmapHandle& handle) {
   NativePixmapHandle clone;
   std::vector<base::ScopedFD> scoped_fds;
   for (auto& fd : handle.fds) {
     base::ScopedFD scoped_fd(HANDLE_EINTR(dup(fd.fd)));
     if (!scoped_fd.is_valid()) {
       PLOG(ERROR) << "dup";
       return NativePixmapHandle();
     }
     scoped_fds.emplace_back(std::move(scoped_fd));
   }
   for (auto& scoped_fd : scoped_fds)
     clone.fds.emplace_back(scoped_fd.release(), true /* auto_close */);
   clone.planes = handle.planes;
   return clone;
 }
-#endif  // defined(USE_OZONE)
+#endif  // defined(OS_LINUX)
 
 }  // namespace gfx