plumb network upload into the task manager

chrome/browser/task_manager/sampling/task_group.cc

Index: chrome/browser/task_manager/sampling/task_group.cc
diff --git a/chrome/browser/task_manager/sampling/task_group.cc b/chrome/browser/task_manager/sampling/task_group.cc
index ce8460050d72812df030d2c1fdee2f683bb1718a..533cbcec2af720b8088d8ff6611a89557fb08183 100644
--- a/chrome/browser/task_manager/sampling/task_group.cc
+++ b/chrome/browser/task_manager/sampling/task_group.cc
@@ -92,6 +92,7 @@ TaskGroup::TaskGroup(
       gpu_memory_(-1),
       memory_state_(base::MemoryState::UNKNOWN),
       per_process_network_usage_(-1),
+      total_per_process_network_usage_(0),
 #if defined(OS_WIN)
       gdi_current_handles_(-1),
       gdi_peak_handles_(-1),
@@ -169,8 +170,10 @@ void TaskGroup::Refresh(const gpu::VideoMemoryUsageStats& gpu_memory_stats,
   for (Task* task : tasks_) {
     task->Refresh(update_interval, refresh_flags);
 
-    if (network_usage_refresh_enabled && task->ReportsNetworkUsage())
+    if (network_usage_refresh_enabled && task->ReportsNetworkUsage()) {
       per_process_network_usage_ += task->network_usage();
+      total_per_process_network_usage_ += task->total_network_usage();
+    }
   }
 
   // 2- Refresh GPU memory (if enabled).