Remove GetTotalsSummary.

The method is a duplicate of GetVmSwapBytes

Change-Id: I1bfc11484035c8c3452831bee0553a98e07a8cce
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1637746Reviewed-by: Ahmed Fakhry <afakhry@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Commit-Queue: Daniel Cheng <dcheng@chromium.org>
Commit-Queue: Erik Chen <erikchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#666437}

base/process/process_metrics.h

@@ -98,14 +98,6 @@ class BASE_EXPORT ProcessMetrics {
   BASE_EXPORT size_t GetResidentSetSize() const;
 #endif
 
-#if defined(OS_CHROMEOS)
-  struct TotalsSummary {
-    size_t swap_kb;
-  };
-  // Returns memory stats for the process.
-  BASE_EXPORT TotalsSummary GetTotalsSummary() const;
-#endif
-
   // Returns the percentage of time spent executing, across all threads of the
   // process, in the interval since the last time the method was called. Since
   // this considers the total execution time across all threads in a process,

base/process/process_metrics_linux.cc

@@ -307,14 +307,6 @@ ProcessMetrics::ProcessMetrics(ProcessHandle process)
 ProcessMetrics::ProcessMetrics(ProcessHandle process) : process_(process) {}
 #endif
 
-#if defined(OS_CHROMEOS)
-ProcessMetrics::TotalsSummary ProcessMetrics::GetTotalsSummary() const {
-  ProcessMetrics::TotalsSummary summary = {};
-  summary.swap_kb = GetVmSwapBytes() >> 10;
-  return summary;
-}
-#endif
-
 size_t GetSystemCommitCharge() {
   SystemMemoryInfoKB meminfo;
   if (!GetSystemMemoryInfo(&meminfo))

chrome/browser/task_manager/sampling/task_group_sampler.cc

@@ -137,9 +137,7 @@ int64_t TaskGroupSampler::RefreshSwappedMem() {
   DCHECK(worker_pool_sequenced_checker_.CalledOnValidSequence());
 
 #if defined(OS_CHROMEOS)
-  base::ProcessMetrics::TotalsSummary summary =
-      process_metrics_->GetTotalsSummary();
-  return summary.swap_kb * 1024;
+  return process_metrics_->GetVmSwapBytes();
 #endif  // defined(OS_CHROMEOS)
 
   return 0;