Fix Chrome OS virtual keyboard accessibility

content/browser/frame_host/render_frame_host_impl.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/frame_host/render_frame_host_impl.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 2105 matching lines @@
   // Don't process this IPC if either we're waiting on a reset and this
   // IPC doesn't have the matching token ID, or if we're not waiting on a
   // reset but this message includes a reset token.
   if (accessibility_reset_token_ != reset_token) {
     Send(new AccessibilityMsg_Events_ACK(routing_id_, ack_token));
     return;
   }
   accessibility_reset_token_ = 0;
 
   RenderWidgetHostViewBase* view = GetViewForAccessibility();
-
-  if (frame_tree_node_->IsMainFrame() && view)
-    view->SetMainFrameAXTreeID(GetAXTreeID());
-
   AccessibilityMode accessibility_mode = delegate_->GetAccessibilityMode();
   if (!accessibility_mode.is_mode_off() && view && is_active()) {
     if (accessibility_mode.has_mode(AccessibilityMode::kNativeAPIs))
       GetOrCreateBrowserAccessibilityManager();
 
     std::vector<AXEventNotificationDetails> details;
     details.reserve(params.size());
     for (size_t i = 0; i < params.size(); ++i) {
       const AccessibilityHostMsg_EventParams& param = params[i];
       AXEventNotificationDetails detail;
@@ skipping 1558 matching lines @@
 }
 
 void RenderFrameHostImpl::ForwardGetInterfaceToRenderFrame(
     const std::string& interface_name,
     mojo::ScopedMessagePipeHandle pipe) {
   GetRemoteInterfaces()->GetInterface(interface_name, std::move(pipe));
 }
 #endif
 
 }  // namespace content