Add experimental extension APIs to notify about wakeup and screen unlock

chrome/browser/accessibility_events.cc

Index: chrome/browser/accessibility_events.cc
diff --git a/chrome/browser/accessibility_events.cc b/chrome/browser/accessibility_events.cc
index a86f35425e9e9caba52ee3b98464b1b609761822..7eaee7e33b1063ef5d1104d1c45e592c98d78e99 100644
--- a/chrome/browser/accessibility_events.cc
+++ b/chrome/browser/accessibility_events.cc
@@ -213,6 +213,20 @@ void AccessibilityVolumeInfo::SerializeToDict(DictionaryValue *dict) const {
   dict->SetBoolean(keys::kIsVolumeMutedKey, is_muted_);
 }
 
+ScreenUnlockedEventInfo::ScreenUnlockedEventInfo(Profile* profile)
+    : AccessibilityEventInfo(profile) {
+}
+
+void ScreenUnlockedEventInfo::SerializeToDict(DictionaryValue *dict) const {
+}
+
+WokeUpEventInfo::WokeUpEventInfo(Profile* profile)
+    : AccessibilityEventInfo(profile) {
+}
+
+void WokeUpEventInfo::SerializeToDict(DictionaryValue *dict) const {
+}
+
 AccessibilityMenuInfo::AccessibilityMenuInfo(Profile* profile,
                                              const std::string& menu_name)
     : AccessibilityControlInfo(profile, menu_name) {