Revert of Make SelectionPopupController.ShowPastePopup only be triggered by Blink

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

 // Copyright 2015 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.TargetApi;
 import android.app.Activity;
 import android.app.SearchManager;
 import android.content.ClipboardManager;
@@ skipping 780 matching lines @@
                 break;
 
             case SelectionEventType.INSERTION_HANDLE_SHOWN:
                 mSelectionRect.set(left, top, right, bottom);
                 setIsInsertion(true);
                 break;
 
             case SelectionEventType.INSERTION_HANDLE_MOVED:
                 mSelectionRect.set(left, top, right, bottom);
                 if (!isScrollInProgress && isPastePopupShowing()) {
-                    mWebContents.showContextMenuAtPoint(xAnchor, yAnchor);
+                    showPastePopup(xAnchor, yAnchor);
                 } else {
                     hidePastePopup();
                 }
                 break;
 
             case SelectionEventType.INSERTION_HANDLE_TAPPED:
                 if (mWasPastePopupShowingOnInsertionDragStart) {
                     hidePastePopup();
                 } else {
-                    mWebContents.showContextMenuAtPoint(xAnchor, yAnchor);
+                    showPastePopup(xAnchor, yAnchor);
                 }
                 mWasPastePopupShowingOnInsertionDragStart = false;
                 break;
 
             case SelectionEventType.INSERTION_HANDLE_CLEARED:
                 hidePastePopup();
                 setIsInsertion(false);
                 mSelectionRect.setEmpty();
                 break;
 
             case SelectionEventType.INSERTION_HANDLE_DRAG_STARTED:
                 mWasPastePopupShowingOnInsertionDragStart = isPastePopupShowing();
                 hidePastePopup();
                 break;
 
             case SelectionEventType.INSERTION_HANDLE_DRAG_STOPPED:
                 if (mWasPastePopupShowingOnInsertionDragStart) {
-                    mWebContents.showContextMenuAtPoint(xAnchor, yAnchor);
+                    showPastePopup(xAnchor, yAnchor);
                 }
                 mWasPastePopupShowingOnInsertionDragStart = false;
                 break;
 
             default:
                 assert false : "Invalid selection event type.";
         }
 
         if (mContextualSearchClient != null) {
             final float deviceScale = mRenderCoordinates.getDeviceScaleFactor();
@@ skipping 74 matching lines @@
         mIsInsertion = insertion;
     }
 
     private boolean isShareAvailable() {
         Intent intent = new Intent(Intent.ACTION_SEND);
         intent.setType("text/plain");
         return mContext.getPackageManager().queryIntentActivities(intent,
                 PackageManager.MATCH_DEFAULT_ONLY).size() > 0;
     }
 }