Remove some dead code for permission bubbles.

chrome/browser/ui/website_settings/mock_permission_bubble_request.cc

 // Copyright 2014 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.
 
 #include "chrome/browser/ui/website_settings/mock_permission_bubble_request.h"
 
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "grit/theme_resources.h"
 
@@ skipping 43 matching lines @@
   origin_ = GURL("http://www.google.com");
 }
 
 MockPermissionBubbleRequest::~MockPermissionBubbleRequest() {}
 
 int MockPermissionBubbleRequest::GetIconId() const {
   // Use a valid icon ID to support UI tests.
   return IDR_INFOBAR_MEDIA_STREAM_CAMERA;
 }
 
-base::string16 MockPermissionBubbleRequest::GetMessageText() const {
-  return text_;
-}
-
 base::string16 MockPermissionBubbleRequest::GetMessageTextFragment() const {
   return text_;
 }
 
 GURL MockPermissionBubbleRequest::GetOrigin() const {
   return origin_;
 }
 
 void MockPermissionBubbleRequest::PermissionGranted() {
   granted_ = true;
@@ skipping 17 matching lines @@
 }
 
 bool MockPermissionBubbleRequest::cancelled() {
   return cancelled_;
 }
 
 bool MockPermissionBubbleRequest::finished() {
   return finished_;
 }