Remove all uses of skia::RefPtr and stale includes

content/browser/renderer_host/sandbox_ipc_linux.h

 // Copyright 2014 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.
 
 // https://chromium.googlesource.com/chromium/src/+/master/docs/linux_sandbox_ipc.md
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_SANDBOX_IPC_LINUX_H_
 #define CONTENT_BROWSER_RENDERER_HOST_SANDBOX_IPC_LINUX_H_
 
 #include <memory>
 #include <vector>
 
 #include "base/files/scoped_file.h"
 #include "base/macros.h"
 #include "base/pickle.h"
 #include "base/threading/simple_thread.h"
-#include "skia/ext/skia_utils_base.h"
+
+class SkString;
 
 namespace content {
 
 class SandboxIPCHandler : public base::DelegateSimpleThread::Delegate {
  public:
   // lifeline_fd: the read end of a pipe which the main thread holds
   // the other end of.
   // browser_socket: the browser's end of the sandbox IPC socketpair.
   SandboxIPCHandler(int lifeline_fd, int browser_socket);
   ~SandboxIPCHandler() override;
@@ skipping 40 matching lines @@
   const int lifeline_fd_;
   const int browser_socket_;
   std::vector<SkString> paths_;
 
   DISALLOW_COPY_AND_ASSIGN(SandboxIPCHandler);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_SANDBOX_IPC_LINUX_H_