Template methods on Timer classes instead of the classes themselves.

content/browser/tracing/background_tracing_rule.cc

 // Copyright 2015 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/browser/tracing/background_tracing_rule.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/statistics_recorder.h"
@@ skipping 256 matching lines @@
   std::string GenerateUniqueName() const {
     static int ids = 0;
     char work_buffer[256];
     base::strings::SafeSNPrintf(work_buffer, sizeof(work_buffer), "%s_%d",
                                 kTraceAtRandomIntervalsEventName, ids++);
     return work_buffer;
   }
 
  private:
   std::string named_event_;
-  base::OneShotTimer<ReactiveTraceAtRandomIntervalsRule> trigger_timer_;
+  base::OneShotTimer trigger_timer_;
   BackgroundTracingConfigImpl::CategoryPreset category_preset_;
   BackgroundTracingManagerImpl::TriggerHandle handle_;
   int timeout_min_;
   int timeout_max_;
 };
 
 }  // namespace
 
 int BackgroundTracingRule::GetReactiveTimeout() const {
   return -1;
@@ skipping 80 matching lines @@
 
     return scoped_ptr<BackgroundTracingRule>(
         new ReactiveTraceAtRandomIntervalsRule(category_preset, timeout_min,
                                                timeout_max));
   }
 
   return nullptr;
 }
 
 }  // namespace content