Add missing (and remove superfluous) 'explicit' from constructors.

content/common/inter_process_time_ticks_converter.cc

 // 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.
 
 #include "content/common/inter_process_time_ticks_converter.h"
 
 #include "base/logging.h"
 
 namespace content {
 
@@ skipping 19 matching lines @@
   denominator_ = source_range;
   // Find out what we need to shift by to make this really work.
   offset_ = local_lower_bound.value_ - Convert(remote_lower_bound.value_);
   DCHECK_GE(local_upper_bound.value_, Convert(remote_upper_bound.value_));
 }
 
 LocalTimeTicks InterProcessTimeTicksConverter::ToLocalTimeTicks(
     const RemoteTimeTicks& remote_ms) {
   DCHECK_LE(remote_lower_bound_, remote_ms.value_);
   DCHECK_GE(remote_upper_bound_, remote_ms.value_);
-  RemoteTimeDelta remote_delta = remote_ms - remote_lower_bound_;
+  RemoteTimeDelta remote_delta = remote_ms -
+      RemoteTimeTicks(remote_lower_bound_);
   return LocalTimeTicks(remote_lower_bound_ + offset_ +
                         ToLocalTimeDelta(remote_delta).value_);
 }
 
 LocalTimeDelta InterProcessTimeTicksConverter::ToLocalTimeDelta(
     const RemoteTimeDelta& remote_delta) {
   DCHECK_GE(remote_upper_bound_, remote_lower_bound_ + remote_delta.value_);
   return LocalTimeDelta(Convert(remote_delta.value_));
 }
 
 int64 InterProcessTimeTicksConverter::Convert(int64 value) {
   if (value <= 0) {
     return value;
   }
   return numerator_ * value / denominator_;
 }
 
 }  // namespace content