Allocator cleanup: remove CHROME_PROFILER_TIME and rotten tcmalloc deps

content/child/content_child_helpers.cc

 // Copyright 2014 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/child/content_child_helpers.h"
 
 #include <stdint.h>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/process/process_metrics.h"
 #include "build/build_config.h"
 #include "v8/include/v8.h"
 
 #if defined(OS_LINUX)
 #include <malloc.h>
 #endif
 
 namespace content {
 
+// TODO(primiano): get rid of this file together with --memory-metrics.
+// This function is both misplaced and misnamed. If useful, this should
+// be moved to base/process/process_metrics.h. Regardless the name,
+// though, this provides only a partial and misleading value.
+// Unfortunately some telemetry benchmark rely on it and these need to
+// be refactored before getting rid of this. See crbug.com/581365 .
 #if defined(OS_LINUX) || defined(OS_ANDROID)
 size_t GetMemoryUsageKB() {
   struct mallinfo minfo = mallinfo();
   uint64_t mem_usage =
 #if defined(USE_TCMALLOC)
       minfo.uordblks
 #else
       (minfo.hblkhd + minfo.arena)
 #endif
       >> 10;
@@ skipping 18 matching lines @@
 #else
 size_t GetMemoryUsageKB() {
   scoped_ptr<base::ProcessMetrics> process_metrics(
       base::ProcessMetrics::CreateProcessMetrics(
           base::GetCurrentProcessHandle()));
   return process_metrics->GetPagefileUsage() >> 10;
 }
 #endif
 
 }  // namespace content