Template methods on Timer classes instead of the classes themselves.

chrome/browser/process_singleton_posix.cc

 // 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.
 
 // On Linux, when the user tries to launch a second copy of chrome, we check
 // for a socket in the user's profile directory.  If the socket file is open we
 // send a message to the first chrome browser process with the current
 // directory and second process command line flags.  The second process then
 // exits.
 //
@@ skipping 498 matching lines @@
     // The file descriptor we're reading.
     const int fd_;
 
     // Store the message in this buffer.
     char buf_[kMaxMessageLength];
 
     // Tracks the number of bytes we've read in case we're getting partial
     // reads.
     size_t bytes_read_;
 
-    base::OneShotTimer<SocketReader> timer_;
+    base::OneShotTimer timer_;
 
     DISALLOW_COPY_AND_ASSIGN(SocketReader);
   };
 
   // We expect to only be constructed on the UI thread.
   explicit LinuxWatcher(ProcessSingleton* parent)
       : ui_message_loop_(base::MessageLoop::current()),
         parent_(parent) {
   }
 
@@ skipping 523 matching lines @@
 }
 
 void ProcessSingleton::KillProcess(int pid) {
   // TODO(james.su@gmail.com): Is SIGKILL ok?
   int rv = kill(static_cast<base::ProcessHandle>(pid), SIGKILL);
   // ESRCH = No Such Process (can happen if the other process is already in
   // progress of shutting down and finishes before we try to kill it).
   DCHECK(rv == 0 || errno == ESRCH) << "Error killing process: "
                                     << base::safe_strerror(errno);
 }