Cut and Copy option should not be avilable for password field.

content/public/android/java/src/org/chromium/content/browser/SelectActionModeCallback.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.content.ClipboardManager;
 import android.content.Context;
 import android.view.ActionMode;
 import android.view.Menu;
@@ skipping 53 matching lines @@
 
         /**
          * @return Whether or not share is available.
          */
         boolean isShareAvailable();
 
         /**
          * @return Whether or not web search is available.
          */
         boolean isWebSearchAvailable();
+
+        /**
+         * @return true if the current selection is of password type.
+         */
+        boolean isSelectionPassword();
     }
 
     private final Context mContext;
     private final ActionHandler mActionHandler;
     private final boolean mIncognito;
     private boolean mEditable;
+    private boolean mIsPasswordType;
 
     protected SelectActionModeCallback(
             Context context, ActionHandler actionHandler, boolean incognito) {
         mContext = context;
         mActionHandler = actionHandler;
         mIncognito = incognito;
     }
 
     protected Context getContext() {
         return mContext;
     }
 
     @Override
     public boolean onCreateActionMode(ActionMode mode, Menu menu) {
         mode.setTitle(null);
         mode.setSubtitle(null);
         mEditable = mActionHandler.isSelectionEditable();
+        mIsPasswordType = mActionHandler.isSelectionPassword();
         createActionMenu(mode, menu);
         return true;
     }
 
     @Override
     public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
         boolean isEditableNow = mActionHandler.isSelectionEditable();
-        if (mEditable != isEditableNow) {
+        boolean isPasswordNow = mActionHandler.isSelectionPassword();
+        if (mEditable != isEditableNow || mIsPasswordType != isPasswordNow) {
             mEditable = isEditableNow;
+            mIsPasswordType = isPasswordNow;
             menu.clear();
             createActionMenu(mode, menu);
             return true;
         }
         return false;
     }
 
     private void createActionMenu(ActionMode mode, Menu menu) {
         mode.getMenuInflater().inflate(R.menu.select_action_menu, menu);
         if (!mEditable || !canPaste()) {
             menu.removeItem(R.id.select_action_menu_paste);
         }
 
         if (!mEditable) {
             menu.removeItem(R.id.select_action_menu_cut);
         }
 
         if (mEditable || !mActionHandler.isShareAvailable()) {
             menu.removeItem(R.id.select_action_menu_share);
         }
 
         if (mEditable || mIncognito || !mActionHandler.isWebSearchAvailable()) {
             menu.removeItem(R.id.select_action_menu_web_search);
         }
+        if (mIsPasswordType) {
+            menu.removeItem(R.id.select_action_menu_copy);
+            menu.removeItem(R.id.select_action_menu_cut);
+        }
     }
 
     @Override
     public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
         int id = item.getItemId();
 
         if (id == R.id.select_action_menu_select_all) {
             mActionHandler.selectAll();
         } else if (id == R.id.select_action_menu_cut) {
             mActionHandler.cut();
@@ skipping 18 matching lines @@
     public void onDestroyActionMode(ActionMode mode) {
         mActionHandler.onDestroyActionMode();
     }
 
     private boolean canPaste() {
         ClipboardManager clipMgr = (ClipboardManager)
                 getContext().getSystemService(Context.CLIPBOARD_SERVICE);
         return clipMgr.hasPrimaryClip();
     }
 }