Pass accessible location change messages to the automation API.

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 <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 1874 matching lines @@
   RenderWidgetHostViewBase* view = static_cast<RenderWidgetHostViewBase*>(
       render_view_host_->GetWidget()->GetView());
   if (view && is_active()) {
     AccessibilityMode accessibility_mode = delegate_->GetAccessibilityMode();
     if (accessibility_mode & AccessibilityModeFlagPlatform) {
       BrowserAccessibilityManager* manager =
           GetOrCreateBrowserAccessibilityManager();
       if (manager)
         manager->OnLocationChanges(params);
     }
-    // TODO(aboxhall): send location change events to web contents observers too

[aboxhall, 2016/08/22 19:48:38]

yay

+
+    // Send the updates to the automation extension API.
+    std::vector<AXLocationChangeNotificationDetails> details;
+    details.reserve(params.size());
+    for (size_t i = 0; i < params.size(); ++i) {
+      const AccessibilityHostMsg_LocationChangeParams& param = params[i];
+      AXLocationChangeNotificationDetails detail;
+      detail.id = param.id;
+      detail.ax_tree_id = GetAXTreeID();
+      detail.new_location = param.new_location;
+      details.push_back(detail);
+    }
+    delegate_->AccessibilityLocationChangesReceived(details);
   }
 }
 
 void RenderFrameHostImpl::OnAccessibilityFindInPageResult(
     const AccessibilityHostMsg_FindInPageResultParams& params) {
   AccessibilityMode accessibility_mode = delegate_->GetAccessibilityMode();
   if (accessibility_mode & AccessibilityModeFlagPlatform) {
     BrowserAccessibilityManager* manager =
         GetOrCreateBrowserAccessibilityManager();
     if (manager) {
@@ skipping 1138 matching lines @@
   web_bluetooth_service_->SetClientConnectionErrorHandler(base::Bind(
       &RenderFrameHostImpl::DeleteWebBluetoothService, base::Unretained(this)));
   return web_bluetooth_service_.get();
 }
 
 void RenderFrameHostImpl::DeleteWebBluetoothService() {
   web_bluetooth_service_.reset();
 }
 
 }  // namespace content