Android accessible long click should perform a context click

AccessibilityNodeInfo.ACTION_CONTEXT_CLICK is already implemented;
make sure AccessibilityNodeInfo.ACTION_LONG_CLICK does the same
thing.

Bug: 1095107
Change-Id: Ib3511a13fc4537b8e59c01fae2bf261832eadc28
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2341398
Commit-Queue: Dominic Mazzoni <dmazzoni@chromium.org>
Reviewed-by: Mark Schillaci <mschillaci@google.com>
Cr-Commit-Position: refs/heads/master@{#795732}

content/public/android/java/src/org/chromium/content/browser/accessibility/WebContentsAccessibilityImpl.java

@@ -760,6 +760,7 @@ public class WebContentsAccessibilityImpl extends AccessibilityNodeProvider
                         mNativeObj, WebContentsAccessibilityImpl.this, virtualViewId);
                 return true;
             case ACTION_CONTEXT_CLICK:
+            case AccessibilityNodeInfo.ACTION_LONG_CLICK:
                 WebContentsAccessibilityImplJni.get().showContextMenu(
                         mNativeObj, WebContentsAccessibilityImpl.this, virtualViewId);
                 return true;
@@ -1415,6 +1416,7 @@ public class WebContentsAccessibilityImpl extends AccessibilityNodeProvider
         addAction(node, AccessibilityNodeInfo.ACTION_PREVIOUS_HTML_ELEMENT);
         addAction(node, ACTION_SHOW_ON_SCREEN);
         addAction(node, ACTION_CONTEXT_CLICK);
+        addAction(node, AccessibilityNodeInfo.ACTION_LONG_CLICK);
 
         if (hasNonEmptyInnerText) {
             addAction(node, AccessibilityNodeInfo.ACTION_NEXT_AT_MOVEMENT_GRANULARITY);