Provide an accessibility tree snapshot

content/public/android/java/src/org/chromium/content/browser/ContentView.java

Index: content/public/android/java/src/org/chromium/content/browser/ContentView.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/ContentView.java b/content/public/android/java/src/org/chromium/content/browser/ContentView.java
index 5852968f79c6f9f234316343aace0e805265941c..865e1270986315f052696fbe914e1c1c1d01871b 100644
--- a/content/public/android/java/src/org/chromium/content/browser/ContentView.java
+++ b/content/public/android/java/src/org/chromium/content/browser/ContentView.java
@@ -14,6 +14,7 @@ import android.os.Message;
 import android.view.KeyEvent;
 import android.view.MotionEvent;
 import android.view.View;
+import android.view.ViewStructure;
 import android.view.accessibility.AccessibilityNodeProvider;
 import android.view.inputmethod.EditorInfo;
 import android.view.inputmethod.InputConnection;
@@ -21,6 +22,7 @@ import android.widget.FrameLayout;
 
 import org.chromium.base.Log;
 import org.chromium.base.TraceEvent;
+import org.chromium.base.VisibleForTesting;
 
 /**
  * The containing view for {@link ContentViewCore} that exists in the Android UI hierarchy and
@@ -72,6 +74,12 @@ public class ContentView extends FrameLayout
         }
     }
 
+    // @Override[ANDROID-M] TODO(sgurun) override and also remove VisibleForTesting. crbug/512264
+    @VisibleForTesting
+    public void onProvideVirtualStructure(final ViewStructure structure) {
+        mContentViewCore.onProvideVirtualStructure(structure);
+    }
+
     // Needed by ContentViewCore.InternalAccessDelegate
     @Override
     public boolean drawChild(Canvas canvas, View child, long drawingTime) {