Add network throttling as an enterprise policy

chrome/browser/chromeos/preferences.cc

 // Copyright (c) 2012 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/chromeos/preferences.h"
 
 #include <vector>
 
 #include "ash/autoclick/autoclick_controller.h"
 #include "ash/common/accessibility_types.h"
 #include "ash/common/wm_shell.h"
 #include "ash/display/display_manager.h"
 #include "ash/shell.h"
 #include "base/command_line.h"
 #include "base/i18n/time_formatting.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/sys_info.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/chromeos/accessibility/magnification_manager.h"
 #include "chrome/browser/chromeos/drive/file_system_util.h"
 #include "chrome/browser/chromeos/input_method/input_method_syncer.h"
 #include "chrome/browser/chromeos/login/session/user_session_manager.h"
+#include "chrome/browser/chromeos/net/network_throttling_observer.h"
 #include "chrome/browser/chromeos/net/wake_on_wifi_manager.h"
 #include "chrome/browser/chromeos/policy/proto/chrome_device_policy.pb.h"
 #include "chrome/browser/chromeos/system/input_device_settings.h"
 #include "chrome/browser/chromeos/system/timezone_resolver_manager.h"
 #include "chrome/browser/download/download_prefs.h"
 #include "chrome/browser/prefs/pref_service_syncable_util.h"
 #include "chrome/common/chrome_features.h"
 #include "chrome/common/pref_names.h"
 #include "chromeos/chromeos_switches.h"
 #include "chromeos/system/statistics_provider.h"
@@ skipping 585 matching lines @@
           ->SetAutoRepeatEnabled(enabled);
     }
   }
   if (reason != REASON_PREF_CHANGED ||
       pref_name == prefs::kLanguageXkbAutoRepeatDelay ||
       pref_name == prefs::kLanguageXkbAutoRepeatInterval) {
     if (user_is_active)
       UpdateAutoRepeatRate();
   }
 
+  // TODO(kirtika): Shill handles the initialization part, just handle
+  // the case when preference changes
+  if (reason == REASON_INITIALIZATION ||

[Mattias Nissler (ping if slow), 2016/10/20 07:28:40]

If you want this code to trigger when the pref changes, why isn't this testing
for reason == REASON_PREF_CHANGED?

+      pref_name == prefs::kNetworkThrottlingEnabled) {
+    PrefService* prefs = g_browser_process->local_state();
+    const base::DictionaryValue* throttling_policy =
+        prefs->GetDictionary(prefs::kNetworkThrottlingEnabled);
+    // TODO(kirtika): Add something like IsDictValid (see existing chrome code)
+    // here
+    if (!throttling_policy) {
+      LOG(ERROR) << "Couldn't get throttling policy";
+    } else {
+      bool enabled;
+      uint32_t upload_rate, download_rate;
+      throttling_policy->GetBoolean("enabled", &enabled);
+      throttling_policy->GetInteger("upload_rate_kbits",
+                                    reinterpret_cast<int*>(&upload_rate));
+      throttling_policy->GetInteger("download_rate_kbits",
+                                    reinterpret_cast<int*>(&download_rate));
+    }
+    // TODO(kirtika): Testing-only, till the actual policy is available
+    NetworkThrottlingObserver::Get()->OnPreferenceChanged(true, 3400, 3400);
+  }
+
   if (reason == REASON_INITIALIZATION)
     SetInputMethodList();
 
   if (pref_name == prefs::kLanguagePreloadEngines &&
       reason == REASON_PREF_CHANGED) {
     SetLanguageConfigStringListAsCSV(language_prefs::kGeneralSectionName,
                                      language_prefs::kPreloadEnginesConfigName,
                                      preload_engines_.GetValue());
   }
 
@@ skipping 150 matching lines @@
   touch_hud_projection_enabled_.SetValue(enabled);
 }
 
 void Preferences::ActiveUserChanged(const user_manager::User* active_user) {
   if (active_user != user_)
     return;
   ApplyPreferences(REASON_ACTIVE_USER_CHANGED, "");
 }
 
 }  // namespace chromeos