[Re-land] Add network throttling as enterprise policy

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index dac8e3bacc64f21ec57574bc01d94fabbffc91f7..2558d639fb24df1242c1c1b6df647c74b33b944a 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -1383,6 +1383,11 @@ const char kTaskManagerColumnVisibility[] = "task_manager.column_visibility";
 // A boolean indicating if ending processes are enabled or disabled by policy.
 const char kTaskManagerEndProcessEnabled[] = "task_manager.end_process_enabled";
 
+// Dictionary indicating current network bandwidth throttling settings.
+// Contains a boolean (is throttling enabled) and two integers (upload rate
+// and download rate in kbits/s to throttle to)
+const char kNetworkThrottlingEnabled[] = "net.throttling_enabled";
+
 // A collection of position, size, and other data relating to app windows to
 // restore on startup.
 const char kAppWindowPlacement[] = "browser.app_window_placement";