Remove worker process related codes from ContentBrowserClient.

content/public/browser/content_browser_client.cc

 // Copyright (c) 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.
 
 #include "content/public/browser/content_browser_client.h"
 
 #include "base/files/file_path.h"
 #include "ui/gfx/image/image_skia.h"
 #include "url/gurl.h"
 
@@ skipping 241 matching lines @@
     bool user_gesture,
     bool opener_suppressed,
     ResourceContext* context,
     int render_process_id,
     int opener_id,
     bool* no_javascript_access) {
   *no_javascript_access = false;
   return true;
 }
 
-std::string ContentBrowserClient::GetWorkerProcessTitle(
-    const GURL& url, ResourceContext* context) {
-  return std::string();
-}
-
 SpeechRecognitionManagerDelegate*
     ContentBrowserClient::GetSpeechRecognitionManagerDelegate() {
   return NULL;
 }
 
 net::NetLog* ContentBrowserClient::GetNetLog() {
   return NULL;
 }
 
 AccessTokenStore* ContentBrowserClient::CreateAccessTokenStore() {
@@ skipping 67 matching lines @@
 
 #if defined(VIDEO_HOLE)
 ExternalVideoSurfaceContainer*
 ContentBrowserClient::OverrideCreateExternalVideoSurfaceContainer(
     WebContents* web_contents) {
   return NULL;
 }
 #endif
 
 }  // namespace content