Force a omnibox refocus on the NTP to update accessibility focus bounds.

Android does not seem to monitor size changes and update the bounds
correctly, so this forces the update after the animation completes.

BUG=595664

Change-Id: I5b3d8b4d62582929699603bd6fff751d0677f82b
Reviewed-on: https://chromium-review.googlesource.com/c/1372306Reviewed-by: Theresa <twellington@chromium.org>
Commit-Queue: Ted Choc <tedchoc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#615617}

chrome/android/java/src/org/chromium/chrome/browser/omnibox/LocationBarLayout.java

@@ -55,6 +55,7 @@ import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.toolbar.ToolbarDataProvider;
 import org.chromium.chrome.browser.toolbar.ToolbarManager;
 import org.chromium.chrome.browser.toolbar.top.ToolbarActionModeCallback;
+import org.chromium.chrome.browser.util.AccessibilityUtil;
 import org.chromium.chrome.browser.util.ColorUtils;
 import org.chromium.content_public.browser.LoadUrlParams;
 import org.chromium.ui.base.DeviceFormFactor;
@@ -381,6 +382,15 @@ public class LocationBarLayout extends FrameLayout
         }
 
         if (!inProgress) {
+            // The accessibility bounding box is not properly updated when focusing the Omnibox
+            // from the NTP fakebox.  Clearing/re-requesting focus triggers the bounding box to
+            // be recalculated.
+            if (didFocusUrlFromFakebox() && !inProgress && mUrlHasFocus
+                    && AccessibilityUtil.isAccessibilityEnabled()) {
+                mUrlBar.clearFocus();
+                mUrlBar.requestFocus();
+            }
+
             for (UrlFocusChangeListener listener : mUrlFocusChangeListeners) {
                 listener.onUrlAnimationFinished(mUrlHasFocus);
             }