Pass accessible location change messages to the automation API.

chrome/browser/extensions/api/automation_internal/automation_internal_api.cc

Index: chrome/browser/extensions/api/automation_internal/automation_internal_api.cc
diff --git a/chrome/browser/extensions/api/automation_internal/automation_internal_api.cc b/chrome/browser/extensions/api/automation_internal/automation_internal_api.cc
index b52ee36034ec5ef1ed7dce87fc262c4a4c040f68..c7f2c9973042602749ce2dd3143cf57995c09885 100644
--- a/chrome/browser/extensions/api/automation_internal/automation_internal_api.cc
+++ b/chrome/browser/extensions/api/automation_internal/automation_internal_api.cc
@@ -203,10 +203,7 @@ class AutomationWebContentsObserver
   void AccessibilityEventReceived(
       const std::vector<content::AXEventNotificationDetails>& details)
       override {
-    std::vector<content::AXEventNotificationDetails>::const_iterator iter =
-        details.begin();
-    for (; iter != details.end(); ++iter) {
-      const content::AXEventNotificationDetails& event = *iter;
+    for (const auto& event : details) {
       ExtensionMsg_AccessibilityEventParams params;
       params.tree_id = event.ax_tree_id;
       params.id = event.id;
@@ -220,6 +217,19 @@ class AutomationWebContentsObserver
     }
   }
 
+  void AccessibilityLocationChangesReceived(
+      const std::vector<content::AXLocationChangeNotificationDetails>& details)
+      override {
+    for (const auto& src : details) {
+      ExtensionMsg_AccessibilityLocationChangeParams dst;
+      dst.id = src.id;
+      dst.tree_id = src.ax_tree_id;
+      dst.new_location = src.new_location;
+      AutomationEventRouter* router = AutomationEventRouter::GetInstance();
+      router->DispatchAccessibilityLocationChange(dst);
+    }
+  }
+
   void RenderFrameDeleted(
       content::RenderFrameHost* render_frame_host) override {
     int tree_id = render_frame_host->GetAXTreeID();