Remove chrome://welcome page.

chrome/browser/android/tab_android.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 "chrome/browser/android/tab_android.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "base/debug/trace_event.h"
@@ skipping 214 matching lines @@
                                                params->window_bounds,
                                                params->user_gesture,
                                                &was_blocked);
         if (was_blocked)
           params->target_contents = NULL;
       }
     }
   }
 }
 
-bool TabAndroid::ShouldWelcomePageLinkToTermsOfService() {
-  NOTIMPLEMENTED();
-  return false;
-}
-
 bool TabAndroid::HasPrerenderedUrl(GURL gurl) {
   prerender::PrerenderManager* prerender_manager = GetPrerenderManager();
   if (!prerender_manager)
     return false;
 
   std::vector<content::WebContents*> contents =
       prerender_manager->GetAllPrerenderingContents();
   prerender::PrerenderContents* prerender_contents;
   for (size_t i = 0; i < contents.size(); ++i) {
     prerender_contents = prerender_manager->
@@ skipping 402 matching lines @@
 
 static void Init(JNIEnv* env, jobject obj) {
   TRACE_EVENT0("native", "TabAndroid::Init");
   // This will automatically bind to the Java object and pass ownership there.
   new TabAndroid(env, obj);
 }
 
 bool TabAndroid::RegisterTabAndroid(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }