Move enabling IPC logging for all child processes to the Content API.

content/public/browser/content_ipc_logging.h

+// Copyright (c) 2011 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_PUBLIC_BROWSER_CONTENT_IPC_LOGGING_H_
+#define CONTENT_PUBLIC_BROWSER_CONTENT_IPC_LOGGING_H_
+#pragma once
+
+#include "content/common/content_export.h"
+#include "ipc/ipc_message.h"  // For IPC_MESSAGE_LOG_ENABLED.
+
+namespace content {
+
+#if defined(IPC_MESSAGE_LOG_ENABLED)
+
+// Enable or disable IPC logging for the browser, all processes
+// derived from ChildProcess (plugin etc), and all
+// renderers.
+CONTENT_EXPORT void EnableIPCLogging(bool enable);
+
+#endif
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_BROWSER_CONTENT_IPC_LOGGING_H_