Fixed the insertion handle showing issue on readonly element.

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

 // Copyright 2012 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.
 
 package org.chromium.content.browser;
 
 import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.app.SearchManager;
 import android.content.ClipboardManager;
@@ skipping 1891 matching lines @@
     }
 
     /**
      * @return Whether the page has an active, touch-controlled selection region.
      */
     @VisibleForTesting
     public boolean hasSelection() {
         return mHasSelection;
     }
 
+     /**
+     * @return Whether the page has an active, touch-controlled insertion handle.
+     */
+    @VisibleForTesting
+    protected boolean hasInsertion() {
+        return mHasInsertion;
+    }
+
     private void hidePastePopup() {
         if (mPastePopupMenu == null) return;
         mPastePopupMenu.hide();
     }
 
     @CalledByNative
     private void onSelectionEvent(int eventType, float posXDip, float posYDip) {
         switch (eventType) {
             case SelectionEventType.SELECTION_SHOWN:
                 mHasSelection = true;
@@ skipping 1013 matching lines @@
     private native void nativeWasResized(long nativeContentViewCoreImpl);
 
     private native void nativeSetAccessibilityEnabled(
             long nativeContentViewCoreImpl, boolean enabled);
 
     private native void nativeExtractSmartClipData(long nativeContentViewCoreImpl,
             int x, int y, int w, int h);
 
     private native void nativeSetBackgroundOpaque(long nativeContentViewCoreImpl, boolean opaque);
 }