Added a ForceYouTubeRestrict policy and deprecated the old ForceYouTubeSafetyMode policy

chrome/browser/net/chrome_network_delegate.h

Index: chrome/browser/net/chrome_network_delegate.h
diff --git a/chrome/browser/net/chrome_network_delegate.h b/chrome/browser/net/chrome_network_delegate.h
index bce63311264116e87fe81896cbc383a02db8dd6d..50f8c2234c7bea196687904411baf66e10ca4fef 100644
--- a/chrome/browser/net/chrome_network_delegate.h
+++ b/chrome/browser/net/chrome_network_delegate.h
@@ -16,6 +16,7 @@
 #include "base/memory/ref_counted.h"
 #include "base/values.h"
 #include "build/build_config.h"
+#include "chrome/browser/net/safe_search_util.h"
 #include "components/data_use_measurement/content/data_use_measurement.h"
 #include "components/metrics/data_use_tracker.h"
 #include "components/prefs/pref_member.h"
@@ -105,9 +106,9 @@ class ChromeNetworkDelegate : public net::NetworkDelegateImpl {
     force_google_safe_search_ = force_google_safe_search;
   }
 
-  void set_force_youtube_safety_mode(
-      BooleanPrefMember* force_youtube_safety_mode) {
-    force_youtube_safety_mode_ = force_youtube_safety_mode;
+  void set_force_youtube_restrict(
+      IntegerPrefMember* force_youtube_restrict) {
+    force_youtube_restrict_ = force_youtube_restrict;
   }
 
   void set_allowed_domains_for_apps(
@@ -131,7 +132,7 @@ class ChromeNetworkDelegate : public net::NetworkDelegateImpl {
       BooleanPrefMember* enable_referrers,
       BooleanPrefMember* enable_do_not_track,
       BooleanPrefMember* force_google_safe_search,
-      BooleanPrefMember* force_youtube_safety_mode,
+      IntegerPrefMember* force_youtube_restrict,
       StringPrefMember* allowed_domains_for_apps,
       PrefService* pref_service);
 
@@ -203,7 +204,7 @@ class ChromeNetworkDelegate : public net::NetworkDelegateImpl {
   BooleanPrefMember* enable_referrers_;
   BooleanPrefMember* enable_do_not_track_;
   BooleanPrefMember* force_google_safe_search_;
-  BooleanPrefMember* force_youtube_safety_mode_;
+  IntegerPrefMember* force_youtube_restrict_;
   StringPrefMember* allowed_domains_for_apps_;
 
   // Weak, owned by our owner.