Remove search::ShouldPrefetchSearchResultsOnSRP

chrome/browser/search/search.cc

 // 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.
 
 #include "chrome/browser/search/search.h"
 
 #include <stddef.h>
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
@@ skipping 32 matching lines @@
 #endif
 
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/chromeos/login/signin/merge_session_throttling_utils.h"
 #endif  // defined(OS_CHROMEOS)
 
 namespace search {
 
 namespace {
 
-const char kPrefetchSearchResultsOnSRP[] = "prefetch_results_srp";
 const char kPrerenderInstantUrlOnOmniboxFocus[] =
     "prerender_instant_url_on_omnibox_focus";
 
 // Controls whether to use the alternate Instant search base URL. This allows
 // experimentation of Instant search.
 const char kUseAltInstantURL[] = "use_alternate_instant_url";
 const char kUseSearchPathForInstant[] = "use_search_path_for_instant";
 const char kAltInstantURLPath[] = "search";
 const char kAltInstantURLQueryParams[] = "&qbp=1";
 
@@ skipping 516 matching lines @@
 
 InstantSupportState GetInstantSupportStateFromNavigationEntry(
     const content::NavigationEntry& entry) {
   base::string16 value;
   if (!entry.GetExtraData(kInstantSupportStateKey, &value))
     return INSTANT_SUPPORT_UNKNOWN;
 
   return StringToInstantSupportState(value);
 }
 
-bool ShouldPrefetchSearchResultsOnSRP() {
-  FieldTrialFlags flags;
-  return GetFieldTrialInfo(&flags) && GetBoolValueForFlagWithDefault(
-      kPrefetchSearchResultsOnSRP, false, flags);
-}
-
 bool ShouldUseAltInstantURL() {
   FieldTrialFlags flags;
   return GetFieldTrialInfo(&flags) && GetBoolValueForFlagWithDefault(
       kUseAltInstantURL, false, flags);
 }
 
 bool ShouldUseSearchPathForInstant() {
   FieldTrialFlags flags;
   return GetFieldTrialInfo(&flags) && GetBoolValueForFlagWithDefault(
       kUseSearchPathForInstant, false, flags);
 }
 
 }  // namespace search