Move FileDescriptorGetInode() and FindProcessHoldingSocket() into base/linux_...

base/linux_util.h

 // Copyright (c) 2009 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 BASE_LINUX_UTIL_H__
 #define BASE_LINUX_UTIL_H__
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 35 matching lines @@
 // to attempt to use preferences from the desktop environment --
 // proxy settings, password manager, etc.
 DesktopEnvironment GetDesktopEnvironment(EnvironmentVariableGetter* env);
 
 // Return a string representation of the given desktop environment.
 // May return NULL in the case of DESKTOP_ENVIRONMENT_OTHER.
 const char* GetDesktopEnvironmentName(DesktopEnvironment env);
 // Convenience wrapper that calls GetDesktopEnvironment() first.
 const char* GetDesktopEnvironmentName(EnvironmentVariableGetter* env);
 
+// Return the inode number for the UNIX domain socket |fd|.
+bool FileDescriptorGetInode(ino_t* inode_out, int fd);
+
+// Find the process which holds the given socket, named by inode number. If
+// multiple processes hold the socket, this function returns false.
+bool FindProcessHoldingSocket(pid_t* pid_out, ino_t socket_inode);
+
 }  // namespace base
 
 #endif  // BASE_LINUX_UTIL_H__