The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/7189dd39dd4b658d17bea7039546b3c2e743ada6

commit 7189dd39dd4b658d17bea7039546b3c2e743ada6
Author: nektar <nektar@chromium.org>
Date: Fri May 05 17:14:00 2017

Nodes with IDs should not be excluded as they might be the target of in-page links and attributes such as aria-labelledby.

Mostly, this affects spans with useful information that should remain in the accessibility tree.
Also took the opportunity to expose the nodes of InlineTextBoxes to the browser.
BUG= 717298 
R=dmazzoni@chromium.org
TESTED=Manually with Jaws and NVDA, browser tests

Review-Url: https://codereview.chromium.org/2856503003
Cr-Commit-Position: refs/heads/master@{#469693}

[modify] https://crrev.com/7189dd39dd4b658d17bea7039546b3c2e743ada6/content/test/data/accessibility/html/in-page-links-expected-android.txt
[modify] https://crrev.com/7189dd39dd4b658d17bea7039546b3c2e743ada6/content/test/data/accessibility/html/in-page-links-expected-blink.txt
[modify] https://crrev.com/7189dd39dd4b658d17bea7039546b3c2e743ada6/content/test/data/accessibility/html/in-page-links-expected-mac.txt
[modify] https://crrev.com/7189dd39dd4b658d17bea7039546b3c2e743ada6/content/test/data/accessibility/html/in-page-links-expected-win.txt
[modify] https://crrev.com/7189dd39dd4b658d17bea7039546b3c2e743ada6/content/test/data/accessibility/html/input-text-value-expected-android.txt
[modify] https://crrev.com/7189dd39dd4b658d17bea7039546b3c2e743ada6/third_party/WebKit/LayoutTests/accessibility/in-page-link-target.html
[modify] https://crrev.com/7189dd39dd4b658d17bea7039546b3c2e743ada6/third_party/WebKit/Source/modules/accessibility/AXLayoutObject.cpp
[modify] https://crrev.com/7189dd39dd4b658d17bea7039546b3c2e743ada6/third_party/WebKit/Source/modules/accessibility/AXNodeObject.cpp