Consistently use int64 for integers holding number of milliseconds.

chrome/browser/metrics/metrics_service.cc

 // Copyright (c) 2006-2009 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.
 
 
 
 //------------------------------------------------------------------------------
 // Description of the life cycle of a instance of MetricsService.
 //
 //  OVERVIEW
@@ skipping 894 matching lines @@
 
   // Right before the UMA transmission gets started, there's one more thing we'd
   // like to record: the histogram of memory usage, so we spawn a task to
   // collect the memory details and when that task is finished, it will call
   // OnMemoryDetailCollectionDone, which will call HistogramSynchronization to
   // collect histograms from all renderers and then we will call
   // OnHistogramSynchronizationDone to continue processing.
   MessageLoop::current()->PostDelayedTask(FROM_HERE,
       log_sender_factory_.
           NewRunnableMethod(&MetricsService::LogTransmissionTimerDone),
-      static_cast<int>(interlog_duration_.InMilliseconds()));
+      interlog_duration_.InMilliseconds());
 }
 
 void MetricsService::LogTransmissionTimerDone() {
   Task* task = log_sender_factory_.
       NewRunnableMethod(&MetricsService::OnMemoryDetailCollectionDone);
 
   MetricsMemoryDetails* details = new MetricsMemoryDetails(task);
   details->StartFetch();
 
   // Collect WebCore cache information to put into a histogram.
@@ skipping 971 matching lines @@
       L"." + key;
   prof_prefs->SetInteger(pref_key.c_str(), value);
 }
 
 static bool IsSingleThreaded() {
   static PlatformThreadId thread_id = 0;
   if (!thread_id)
     thread_id = PlatformThread::CurrentId();
   return PlatformThread::CurrentId() == thread_id;
 }