Add ProcessMetrics::CreateCurrentProcessMetrics() method.

chrome/browser/safe_browsing/safe_browsing_database.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 "chrome/browser/safe_browsing/safe_browsing_database.h"
 
 #include <algorithm>
 #include <iterator>
 
 #include "base/bind.h"
@@ skipping 1411 matching lines @@
     SafeBrowsingStore* url_store,
     PrefixSetId prefix_set_id,
     FailureType finish_failure_type,
     FailureType write_failure_type,
     bool store_full_hashes_in_prefix_set) {
   DCHECK(db_task_runner_->RunsTasksOnCurrentThread());
   DCHECK(url_store);
 
   // Measure the amount of IO during the filter build.
   base::IoCounters io_before, io_after;
-  base::ProcessHandle handle = base::GetCurrentProcessHandle();
   scoped_ptr<base::ProcessMetrics> metric(
-#if !defined(OS_MACOSX)
-      base::ProcessMetrics::CreateProcessMetrics(handle)
-#else
-      // Getting stats only for the current process is enough, so NULL is fine.
-      base::ProcessMetrics::CreateProcessMetrics(handle, NULL)
-#endif
-  );
+      base::ProcessMetrics::CreateCurrentProcessMetrics());
 
   // IoCounters are currently not supported on Mac, and may not be
   // available for Linux, so we check the result and only show IO
   // stats if they are available.
   const bool got_counters = metric->GetIOCounters(&io_before);
 
   const base::TimeTicks before = base::TimeTicks::Now();
 
   // TODO(shess): Perhaps refactor to let builder accumulate full hashes on the
   // fly?  Other clients use the SBAddFullHash vector, but AFAICT they only use
@@ skipping 371 matching lines @@
   else
     NOTREACHED();  // Add support for new lists above.
 
   // Histogram properties as in UMA_HISTOGRAM_COUNTS macro.
   base::HistogramBase* histogram_pointer = base::Histogram::FactoryGet(
       histogram_name, 1, 1000000, 50,
       base::HistogramBase::kUmaTargetedHistogramFlag);
 
   histogram_pointer->Add(file_size_kilobytes);
 }