Add policy for fullscreen mode; disallow fullscreen in public sessions

chrome/browser/policy/configuration_policy_handler_list.cc

Index: chrome/browser/policy/configuration_policy_handler_list.cc
diff --git a/chrome/browser/policy/configuration_policy_handler_list.cc b/chrome/browser/policy/configuration_policy_handler_list.cc
index 03c0711bf3d7c7f1a2baa359339c79490a129def..e9a39a53d68c6554c5ff5101a7c26b224a9e728a 100644
--- a/chrome/browser/policy/configuration_policy_handler_list.cc
+++ b/chrome/browser/policy/configuration_policy_handler_list.cc
@@ -27,6 +27,10 @@
 #include "chrome/browser/policy/configuration_policy_handler_android.h"
 #endif  // defined(OS_ANDROID)
 
+#if !defined(OS_MACOSX)
+#include "apps/pref_names.h"
+#endif
+
 namespace policy {
 
 namespace {
@@ -346,6 +350,15 @@ const PolicyToPreferenceMapEntry kSimplePolicyMap[] = {
     prefs::kManagedUserCreationAllowed,
     Value::TYPE_BOOLEAN },
 
+#if !defined(OS_MACOSX)
+  { key::kFullscreenAllowed,
+    prefs::kFullscreenAllowed,
+    Value::TYPE_BOOLEAN },
+  { key::kFullscreenAllowed,
+    apps::prefs::kAppFullscreenAllowed,
+    Value::TYPE_BOOLEAN },
+#endif  // !defined(OS_MACOSX)
+
 #if defined(OS_CHROMEOS)
   { key::kChromeOsLockOnIdleSuspend,
     prefs::kEnableScreenLock,