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

content/public/android/java/src/org/chromium/content/browser/input/ImeAdapter.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.input;
 
 import android.os.Handler;
 import android.os.ResultReceiver;
 import android.os.SystemClock;
 import android.text.Editable;
@@ skipping 277 matching lines @@
     }
 
     private static boolean isTextInputType(int type) {
         return type != sTextInputTypeNone && !InputDialogContainer.isDialogInputType(type);
     }
 
     public boolean hasTextInputType() {
         return isTextInputType(mTextInputType);
     }
 
+    /**
+     * @return true if the selected text is of password.
+     */
+    public boolean isSelectionPassword() {
+        return mTextInputType == sTextInputTypePassword;
+    }
+
     public boolean dispatchKeyEvent(KeyEvent event) {
         return translateAndSendNativeEvents(event);
     }
 
     private int shouldSendKeyEventWithKeyCode(String text) {
         if (text.length() != 1) return COMPOSITION_KEY_CODE;
 
         if (text.equals("\n")) return KeyEvent.KEYCODE_ENTER;
         else if (text.equals("\t")) return KeyEvent.KEYCODE_TAB;
         else return COMPOSITION_KEY_CODE;
@@ skipping 240 matching lines @@
     private native void nativeDeleteSurroundingText(long nativeImeAdapterAndroid,
             int before, int after);
 
     private native void nativeUnselect(long nativeImeAdapterAndroid);
     private native void nativeSelectAll(long nativeImeAdapterAndroid);
     private native void nativeCut(long nativeImeAdapterAndroid);
     private native void nativeCopy(long nativeImeAdapterAndroid);
     private native void nativePaste(long nativeImeAdapterAndroid);
     private native void nativeResetImeAdapter(long nativeImeAdapterAndroid);
 }