Use unique IDs for accessibility nodes on Android

ui/accessibility/platform/ax_platform_node_base.cc

 // Copyright 2014 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 "ui/accessibility/platform/ax_platform_node_base.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "ui/accessibility/ax_node_data.h"
 #include "ui/accessibility/platform/ax_platform_node_delegate.h"
 
@@ skipping 26 matching lines @@
 }
 
 gfx::NativeViewAccessible AXPlatformNodeBase::ChildAtIndex(int index) {
   CHECK(delegate_);
   return delegate_->ChildAtIndex(index);
 }
 
 // AXPlatformNode overrides.
 
 void AXPlatformNodeBase::Destroy() {
+  AXPlatformNode::Destroy();
   delegate_ = nullptr;
   delete this;
 }
 
 gfx::NativeViewAccessible AXPlatformNodeBase::GetNativeViewAccessible() {
   return nullptr;
 }
 
 AXPlatformNodeDelegate* AXPlatformNodeBase::GetDelegate() const {
   return delegate_;
@@ skipping 131 matching lines @@
 }
 
 // static
 AXPlatformNodeBase* AXPlatformNodeBase::FromNativeViewAccessible(
     gfx::NativeViewAccessible accessible) {
   return static_cast<AXPlatformNodeBase*>(
       AXPlatformNode::FromNativeViewAccessible(accessible));
 }
 
 }  // namespace ui