Kills TraceTicks, which was functionally the same as TimeTicks

ipc/ipc_message_utils.cc

 // Copyright (c) 2012 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 "ipc/ipc_message_utils.h"
 
 #include "base/files/file_path.h"
 #include "base/json/json_writer.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/nullable_string16.h"
@@ skipping 847 matching lines @@
   if (ret)
     *r = base::TimeTicks::FromInternalValue(value);
 
   return ret;
 }
 
 void ParamTraits<base::TimeTicks>::Log(const param_type& p, std::string* l) {
   ParamTraits<int64_t>::Log(p.ToInternalValue(), l);
 }
 
-void ParamTraits<base::TraceTicks>::Write(Message* m, const param_type& p) {
-  ParamTraits<int64_t>::Write(m, p.ToInternalValue());
-}
-
-bool ParamTraits<base::TraceTicks>::Read(const Message* m,
-                                         base::PickleIterator* iter,
-                                         param_type* r) {
-  int64_t value;
-  bool ret = ParamTraits<int64_t>::Read(m, iter, &value);
-  if (ret)
-    *r = base::TraceTicks::FromInternalValue(value);
-
-  return ret;
-}
-
-void ParamTraits<base::TraceTicks>::Log(const param_type& p, std::string* l) {
-  ParamTraits<int64_t>::Log(p.ToInternalValue(), l);
-}
-
 void ParamTraits<IPC::ChannelHandle>::Write(Message* m, const param_type& p) {
 #if defined(OS_WIN)
   // On Windows marshalling pipe handle is not supported.
   DCHECK(p.pipe.handle == NULL);
 #endif  // defined (OS_WIN)
   WriteParam(m, p.name);
 #if defined(OS_POSIX)
   WriteParam(m, p.socket);
 #endif
 }
@@ skipping 160 matching lines @@
   return result;
 }
 
 void ParamTraits<MSG>::Log(const param_type& p, std::string* l) {
   l->append("<MSG>");
 }
 
 #endif  // OS_WIN
 
 }  // namespace IPC