Revert of Fix accessibility with out-of-process iframes.

content/browser/frame_host/render_frame_host_impl.cc

Index: content/browser/frame_host/render_frame_host_impl.cc
diff --git a/content/browser/frame_host/render_frame_host_impl.cc b/content/browser/frame_host/render_frame_host_impl.cc
index 8dc4395003b355fffabc072338aeeb9e7e51a4e3..68aa99e9cdc9aacc5a0f232df5442db75dbd7c1d 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -1340,6 +1340,12 @@
   AccessibilityMode accessibility_mode = delegate_->GetAccessibilityMode();
   if ((accessibility_mode != AccessibilityModeOff) && view &&
       RenderFrameHostImpl::IsRFHStateActive(rfh_state())) {
+    if (accessibility_mode & AccessibilityModeFlagPlatform) {
+      GetOrCreateBrowserAccessibilityManager();
+      if (browser_accessibility_manager_)
+        browser_accessibility_manager_->OnAccessibilityEvents(params);
+    }
+
     if (browser_accessibility_manager_) {
       // Get the frame routing ids from out-of-process iframes and
       // browser plugin instance ids from guests and update the mappings in
@@ -1351,12 +1357,6 @@
         UpdateGuestFrameAccessibility(
             param.node_to_browser_plugin_instance_id_map);
       }
-    }
-
-    if (accessibility_mode & AccessibilityModeFlagPlatform) {
-      GetOrCreateBrowserAccessibilityManager();
-      if (browser_accessibility_manager_)
-        browser_accessibility_manager_->OnAccessibilityEvents(params);
     }
 
     // Send the updates to the automation extension API.