[ChromeOS] Add Swapped Memory to TaskManager

chrome/browser/task_management/sampling/task_group_sampler.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 "chrome/browser/task_management/sampling/task_group_sampler.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 127 matching lines @@
     // Memory = working_set.private which is working set minus shareable. This
     // avoids the unpredictable counting that occurs when calculating memory as
     // working set minus shared (renderer code counted when one tab is open and
     // not counted when two or more are open) and it is much more efficient to
     // calculate on Windows.
     memory_usage.physical_bytes =
         static_cast<int64_t>(process_metrics_->GetWorkingSetSize());
     memory_usage.physical_bytes -=
         static_cast<int64_t>(ws_usage.shareable * 1024);
 #endif
+#if defined(OS_CHROMEOS)
+    memory_usage.swapped_bytes = ws_usage.swapped * 1024;
+#endif
   }
 
   return memory_usage;
 }
 
 int TaskGroupSampler::RefreshIdleWakeupsPerSecond() {
   DCHECK(worker_pool_sequenced_checker_.CalledOnValidSequencedThread());
 
   return process_metrics_->GetIdleWakeupsPerSecond();
 }
 
 #if defined(OS_LINUX)
 int TaskGroupSampler::RefreshOpenFdCount() {
   DCHECK(worker_pool_sequenced_checker_.CalledOnValidSequencedThread());
 
   return process_metrics_->GetOpenFdCount();
 }
 #endif  // defined(OS_LINUX)
 
 bool TaskGroupSampler::RefreshProcessPriority() {
   DCHECK(worker_pool_sequenced_checker_.CalledOnValidSequencedThread());
 
   return process_.IsProcessBackgrounded();
 }
 
 }  // namespace task_management