Add device policies to control accessibility settings on the login screen

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 2baabf1a67991c32fd97af79c00dd9da1448ecde..1c73d0ab6b2066a1ff0b7c45707c7d4ea32b2497 100644
--- a/chrome/browser/policy/configuration_policy_handler_list.cc
+++ b/chrome/browser/policy/configuration_policy_handler_list.cc
@@ -18,6 +18,7 @@
 #include "policy/policy_constants.h"
 
 #if defined(OS_CHROMEOS)
+#include "ash/magnifier/magnifier_constants.h"
 #include "chrome/browser/chromeos/policy/configuration_policy_handler_chromeos.h"
 #endif  // defined(OS_CHROMEOS)
 
@@ -383,6 +384,15 @@ const PolicyToPreferenceMapEntry kSimplePolicyMap[] = {
   { key::kHighContrastEnabled,
     prefs::kHighContrastEnabled,
     Value::TYPE_BOOLEAN },
+  { key::kDeviceLoginScreenDefaultLargeCursorEnabled,
+    NULL,
+    Value::TYPE_BOOLEAN },
+  { key::kDeviceLoginScreenDefaultSpokenFeedbackEnabled,
+    NULL,
+    Value::TYPE_BOOLEAN },
+  { key::kDeviceLoginScreenDefaultHighContrastEnabled,
+    NULL,
+    Value::TYPE_BOOLEAN },
   { key::kRebootAfterUpdate,
     prefs::kRebootAfterUpdate,
     Value::TYPE_BOOLEAN },
@@ -538,6 +548,10 @@ ConfigurationPolicyHandlerList::ConfigurationPolicyHandlerList() {
   handlers_.push_back(new IntRangePolicyHandler(key::kUptimeLimit,
                                                 prefs::kUptimeLimit,
                                                 3600, INT_MAX, true));
+  handlers_.push_back(new IntRangePolicyHandler(
+      key::kDeviceLoginScreenDefaultScreenMagnifierType,
+      NULL,
+      0, ash::MAGNIFIER_FULL, false));
 #endif  // defined(OS_CHROMEOS)
 }