Remove a variety of no-longer-used query params.

chrome/browser/ui/search/search_ipc_router_policy_impl.cc

 // Copyright 2013 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/search/search_ipc_router_policy_impl.h"
 
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search/search.h"
 #include "content/public/browser/web_contents.h"
 
@@ skipping 53 matching lines @@
 }
 
 bool SearchIPCRouterPolicyImpl::ShouldSendSetDisplayInstantResults() {
   return !is_incognito_;
 }
 
 bool SearchIPCRouterPolicyImpl::ShouldSendSetSuggestionToPrefetch() {
   return !is_incognito_;
 }
 
-bool SearchIPCRouterPolicyImpl::ShouldSendSetOmniboxStartMargin() {
-  return true;
-}
-
 bool SearchIPCRouterPolicyImpl::ShouldSendSetInputInProgress(
     bool is_active_tab) {
   return is_active_tab && !is_incognito_;
 }
 
 bool SearchIPCRouterPolicyImpl::ShouldSendOmniboxFocusChanged() {
   return !is_incognito_;
 }
 
 bool SearchIPCRouterPolicyImpl::ShouldSendMostVisitedItems() {
   return !is_incognito_ && search::IsInstantNTP(web_contents_);
 }
 
 bool SearchIPCRouterPolicyImpl::ShouldSendThemeBackgroundInfo() {
   return !is_incognito_ && search::IsInstantNTP(web_contents_);
 }
 
 bool SearchIPCRouterPolicyImpl::ShouldSubmitQuery() {
   return true;
 }