content/browser/loader/power_save_block_resource_throttle.cc

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/browser/loader/power_save_block_resource_throttle.h"
   6
   7 #include "content/public/browser/power_save_blocker.h"
   8
   9 namespace content {
  10
  11 namespace {
  12
  13 const int kPowerSaveBlockDelaySeconds = 30;
  14
  15 }  // namespace
  16
  17 PowerSaveBlockResourceThrottle::PowerSaveBlockResourceThrottle() {
  18 }
  19
  20 PowerSaveBlockResourceThrottle::~PowerSaveBlockResourceThrottle() {
  21 }
  22
  23 void PowerSaveBlockResourceThrottle::WillStartRequest(bool* defer) {
  24   // Delay PowerSaveBlocker activation to dismiss small requests.
  25   timer_.Start(FROM_HERE,
  26                base::TimeDelta::FromSeconds(kPowerSaveBlockDelaySeconds),
  27                this,
  28                &PowerSaveBlockResourceThrottle::ActivatePowerSaveBlocker);
  29 }
  30
  31 void PowerSaveBlockResourceThrottle::WillProcessResponse(bool* defer) {
  32   // Stop blocking power save after request finishes.
  33   power_save_blocker_.reset();
  34   timer_.Stop();
  35 }
  36
  37 const char* PowerSaveBlockResourceThrottle::GetNameForLogging() const {
  38   return "PowerSaveBlockResourceThrottle";
  39 }
  40
  41 void PowerSaveBlockResourceThrottle::ActivatePowerSaveBlocker() {
  42   power_save_blocker_ = PowerSaveBlocker::Create(
  43       PowerSaveBlocker::kPowerSaveBlockPreventAppSuspension,
  44       PowerSaveBlocker::kReasonOther, "Uploading data");
  45 }
  46
  47 }  // namespace content