[Re-land] Add network throttling as enterprise policy

chromeos/network/network_state_handler.cc

Index: chromeos/network/network_state_handler.cc
diff --git a/chromeos/network/network_state_handler.cc b/chromeos/network/network_state_handler.cc
index bf0681c27eb8410e736912e1161bcbe190a70756..a07219da47dfbb7d26484759d018e0eb02754052 100644
--- a/chromeos/network/network_state_handler.cc
+++ b/chromeos/network/network_state_handler.cc
@@ -15,6 +15,7 @@
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/metrics/histogram_macros.h"
+#include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/values.h"
@@ -384,6 +385,18 @@ void NetworkStateHandler::SetWakeOnLanEnabled(bool enabled) {
   shill_property_handler_->SetWakeOnLanEnabled(enabled);
 }
 
+void NetworkStateHandler::SetNetworkThrottlingStatus(
+    bool enabled,
+    uint32_t upload_rate_kbits,
+    uint32_t download_rate_kbits) {
+  NET_LOG_EVENT("SetNetworkThrottlingStatus",
+                enabled ? ("true :" + base::IntToString(upload_rate_kbits) +
+                           ", " + base::IntToString(download_rate_kbits))
+                        : "false");
+  shill_property_handler_->SetNetworkThrottlingStatus(
+      enabled, upload_rate_kbits, download_rate_kbits);
+}
+
 const NetworkState* NetworkStateHandler::GetEAPForEthernet(
     const std::string& service_path) {
   const NetworkState* network = GetNetworkState(service_path);