[Icons NTP] Use GetVariationParamValue instead of experiment prefix to determine when large icons a…

chrome/renderer/searchbox/searchbox_extension.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/renderer/searchbox/searchbox_extension.h"
 
 #include "base/i18n/rtl.h"
 #include "base/json/string_escape.h"
-#include "base/metrics/field_trial.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/common/instant_types.h"
 #include "chrome/common/ntp_logging_events.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/grit/renderer_resources.h"
 #include "chrome/renderer/searchbox/searchbox.h"
 #include "components/crx_file/id_util.h"
+#include "components/variations/variations_associated_data.h"
 #include "content/public/renderer/render_view.h"
 #include "third_party/WebKit/public/platform/WebURLRequest.h"
 #include "third_party/WebKit/public/web/WebDocument.h"
 #include "third_party/WebKit/public/web/WebLocalFrame.h"
 #include "third_party/WebKit/public/web/WebScriptSource.h"
 #include "third_party/WebKit/public/web/WebView.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/window_open_disposition.h"
 #include "ui/events/keycodes/keyboard_codes.h"
 #include "url/gurl.h"
@@ skipping 27 matching lines @@
 const char kRTLHtmlTextDirection[] = "rtl";
 
 // Converts a V8 value to a string16.
 base::string16 V8ValueToUTF16(v8::Handle<v8::Value> v) {
   v8::String::Value s(v);
   return base::string16(reinterpret_cast<const base::char16*>(*s), s.length());
 }
 
 // Returns whether we should use large icons on NTP.
 bool IsIconNTPEnabled() {
-  return StartsWithASCII(base::FieldTrialList::FindFullName("IconNTP"),
-                         "Enabled", true);
+  return variations::GetVariationParamValue("IconNTP", "state") == "enabled";
 }
 
 // Converts string16 to V8 String.
 v8::Handle<v8::String> UTF16ToV8String(v8::Isolate* isolate,
                                        const base::string16& s) {
   return v8::String::NewFromTwoByte(isolate,
                                     reinterpret_cast<const uint16_t*>(s.data()),
                                     v8::String::kNormalString,
                                     s.size());
 }
@@ skipping 1201 matching lines @@
   if (!render_view) return;
 
   bool display_instant_results =
       SearchBox::Get(render_view)->display_instant_results();
   DVLOG(1) << render_view << " GetDisplayInstantResults" <<
       display_instant_results;
   args.GetReturnValue().Set(display_instant_results);
 }
 
 }  // namespace extensions_v8