plumb network upload into the task manager

chrome/browser/task_manager/providers/task.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_manager/providers/task.h"
 
 #include <stddef.h>
 
 #include "base/process/process.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 12 matching lines @@
 int64_t g_last_id = 0;
 
 }  // namespace
 
 Task::Task(const base::string16& title,
            const std::string& rappor_sample,
            const gfx::ImageSkia* icon,
            base::ProcessHandle handle,
            base::ProcessId process_id)
     : task_id_(g_last_id++),
-      network_usage_(-1),
-      current_byte_count_(-1),
+      last_refresh_cumulative_bytes_sent_(0),
+      last_refresh_cumulative_bytes_read_(0),
+      cumulative_bytes_sent_(0),
+      cumulative_bytes_read_(0),
+      network_sent_rate_(0),
+      network_read_rate_(0),
       title_(title),
       rappor_sample_name_(rappor_sample),
       icon_(icon ? *icon : gfx::ImageSkia()),
       process_handle_(handle),
       process_id_(process_id != base::kNullProcessId
                       ? process_id
                       : base::GetProcId(handle)) {}
 
 Task::~Task() {}
 
@@ skipping 18 matching lines @@
 }
 
 void Task::Kill() {
   DCHECK_NE(process_id(), base::GetCurrentProcId());
   base::Process process = base::Process::Open(process_id());
   process.Terminate(content::RESULT_CODE_KILLED, false);
 }
 
 void Task::Refresh(const base::TimeDelta& update_interval,
                    int64_t refresh_flags) {
-  if ((refresh_flags & REFRESH_TYPE_NETWORK_USAGE) == 0)
+  if ((refresh_flags & REFRESH_TYPE_NETWORK_USAGE) == 0 ||
+      update_interval == base::TimeDelta())
     return;
 
-  if (current_byte_count_ == -1)
-    return;
+  int64_t current_cycle_read_byte_count =
+      cumulative_bytes_read_ - last_refresh_cumulative_bytes_read_;
+  network_read_rate_ =
+      (current_cycle_read_byte_count * base::TimeDelta::FromSeconds(1)) /
+      update_interval;
 
-  network_usage_ =
-      (current_byte_count_ * base::TimeDelta::FromSeconds(1)) / update_interval;
+  int64_t current_cycle_sent_byte_count =
+      cumulative_bytes_sent_ - last_refresh_cumulative_bytes_sent_;
+  network_sent_rate_ =
+      (current_cycle_sent_byte_count * base::TimeDelta::FromSeconds(1)) /
+      update_interval;
 
-  // Reset the current byte count for this task.
-  current_byte_count_ = 0;
+  last_refresh_cumulative_bytes_read_ = cumulative_bytes_read_;
+  last_refresh_cumulative_bytes_sent_ = cumulative_bytes_sent_;
 }
 
 void Task::OnNetworkBytesRead(int64_t bytes_read) {
-  if (current_byte_count_ == -1)
-    current_byte_count_ = 0;
+  cumulative_bytes_read_ += bytes_read;
+}
 
-  current_byte_count_ += bytes_read;
+void Task::OnNetworkBytesSent(int64_t bytes_sent) {
+  cumulative_bytes_sent_ += bytes_sent;
 }
 
 void Task::GetTerminationStatus(base::TerminationStatus* out_status,
                                 int* out_error_code) const {
   DCHECK(out_status);
   DCHECK(out_error_code);
 
   *out_status = base::TERMINATION_STATUS_STILL_RUNNING;
   *out_error_code = 0;
 }
@@ skipping 39 matching lines @@
 }
 
 blink::WebCache::ResourceTypeStats Task::GetWebCacheStats() const {
   return blink::WebCache::ResourceTypeStats();
 }
 
 int Task::GetKeepaliveCount() const {
   return -1;
 }
 
-bool Task::ReportsNetworkUsage() const {
-  return network_usage_ != -1;
-}
-
 }  // namespace task_manager