Safe Browsing malware interstitial redesign field trial.

chrome/browser/chrome_browser_field_trials.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/chrome_browser_field_trials.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
 #include "base/string_number_conversions.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/sys_string_conversions.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/auto_launch_trial.h"
 #include "chrome/browser/autocomplete/autocomplete_field_trial.h"
 #include "chrome/browser/extensions/default_apps_trial.h"
 #include "chrome/browser/google/google_util.h"
 #include "chrome/browser/gpu_util.h"
 #include "chrome/browser/net/predictor.h"
 #include "chrome/browser/prerender/prerender_field_trial.h"
+#include "chrome/browser/safe_browsing/safe_browsing_blocking_page.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/chrome_version_info.h"
 #include "chrome/common/metrics/variations/variations_util.h"
 #include "net/http/http_network_layer.h"
 #include "net/http/http_stream_factory.h"
 #include "net/socket/client_socket_pool_base.h"
 #include "net/socket/client_socket_pool_manager.h"
 #include "net/spdy/spdy_session.h"
 #include "net/spdy/spdy_session_pool.h"
 #include "ui/base/layout.h"
@@ skipping 84 matching lines @@
   SpdyFieldTrial();
   ConnectBackupJobsFieldTrial();
   WarmConnectionFieldTrial();
   PredictorFieldTrial();
   DefaultAppsFieldTrial();
   AutoLaunchChromeFieldTrial();
   gpu_util::InitializeCompositingFieldTrial();
   SetupUniformityFieldTrials();
   AutocompleteFieldTrial::Activate();
   DisableNewTabFieldTrialIfNecesssary();
+  SetUpSafeBrowsingInterstitialFieldTrial();
 }
 
 // This is an A/B test for the maximum number of persistent connections per
 // host. Currently Chrome, Firefox, and IE8 have this value set at 6. Safari
 // uses 4, and Fasterfox (a plugin for Firefox that supposedly configures it to
 // run faster) uses 8. We would like to see how much of an effect this value has
 // on browsing. Too large a value might cause us to run into SYN flood detection
 // mechanisms.
 void ChromeBrowserFieldTrials::ConnectionFieldTrial() {
   const base::FieldTrial::Probability kConnectDivisor = 100;
@@ skipping 438 matching lines @@
   if (trial) {
     bool using_hidpi_assets = false;
 #if defined(ENABLE_HIDPI) && defined(OS_WIN)
     // Mirrors logic in resource_bundle_win.cc.
     using_hidpi_assets = ui::GetDPIScale() > 1.5;
 #endif
     if (ui::GetDisplayLayout() != ui::LAYOUT_DESKTOP || using_hidpi_assets)
       trial->Disable();
   }
 }
+
+void ChromeBrowserFieldTrials::SetUpSafeBrowsingInterstitialFieldTrial() {
+  const base::FieldTrial::Probability kDivisor = 100;
+  const base::FieldTrial::Probability kVersion2Probability = 50;  // 50% prob.
+  scoped_refptr<base::FieldTrial> trial(
+      base::FieldTrialList::FactoryGetFieldTrial("SBInterstitial", kDivisor,
+                                                 "V1", 2012, 9, 19, NULL));
+  trial->UseOneTimeRandomization();
+  trial->AppendGroup("V2", kVersion2Probability);
+}