Reset the Lo-Fi main frame state when there is a new main frame request

components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.cc

 // Copyright 2014 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 "components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 97 matching lines @@
   // Technically, this is not "at startup", but this is the first chance that
   // IO data objects can be called.
   UpdateIOData(true);
 }
 
 void DataReductionProxySettings::SetCallbackToRegisterSyntheticFieldTrial(
     const SyntheticFieldTrialRegistrationCallback&
         on_data_reduction_proxy_enabled) {
   register_synthetic_field_trial_ = on_data_reduction_proxy_enabled;
   RegisterDataReductionProxyFieldTrial();
-  RegisterLoFiFieldTrial();
 }
 
 bool DataReductionProxySettings::IsDataReductionProxyEnabled() const {
   return spdy_proxy_auth_enabled_.GetValue() ||
          params::ShouldForceEnableDataReductionProxy();
 }
 
 bool DataReductionProxySettings::CanUseDataReductionProxy(
     const GURL& url) const {
   return url.is_valid() && url.scheme() == url::kHttpScheme &&
@@ skipping 36 matching lines @@
   DCHECK(thread_checker_.CalledOnValidThread());
   return prefs_;
 }
 
 void DataReductionProxySettings::SetLoFiModeActiveOnMainFrame(
     bool lo_fi_mode_active) {
   if (prefs_ && lo_fi_mode_active)
     prefs_->SetBoolean(prefs::kLoFiWasUsedThisSession, true);
   lo_fi_load_image_requested_ = false;
   lo_fi_mode_active_ = lo_fi_mode_active;
-  if (!register_synthetic_field_trial_.is_null()) {
-    RegisterLoFiFieldTrial();
-  }
 }
 
 bool DataReductionProxySettings::WasLoFiModeActiveOnMainFrame() const {
   return lo_fi_mode_active_;
 }
 
 bool DataReductionProxySettings::WasLoFiLoadImageRequestedBefore() {
   return lo_fi_load_image_requested_;
 }
 
@@ skipping 26 matching lines @@
     }
   }
 }
 
 void DataReductionProxySettings::RegisterDataReductionProxyFieldTrial() {
   register_synthetic_field_trial_.Run(
       "SyntheticDataReductionProxySetting",
       IsDataReductionProxyEnabled() ? "Enabled" : "Disabled");
 }
 
-void DataReductionProxySettings::RegisterLoFiFieldTrial() {
-  register_synthetic_field_trial_.Run(
-      "SyntheticDataReductionProxyLoFiSetting",
-      IsDataReductionProxyEnabled() && WasLoFiModeActiveOnMainFrame()
-          ? "Enabled"
-          : "Disabled");
-}
-
 void DataReductionProxySettings::OnProxyEnabledPrefChange() {
   DCHECK(thread_checker_.CalledOnValidThread());
   if (!register_synthetic_field_trial_.is_null()) {
     RegisterDataReductionProxyFieldTrial();
-    RegisterLoFiFieldTrial();
   }
   if (!allowed_)
     return;
   MaybeActivateDataReductionProxy(false);
 }
 
 void DataReductionProxySettings::ResetDataReductionStatistics() {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK(data_reduction_proxy_service_->compression_stats());
   data_reduction_proxy_service_->compression_stats()->ResetStatistics();
@@ skipping 125 matching lines @@
     int64_t* received_content_length,
     int64_t* last_update_time) {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK(data_reduction_proxy_service_->compression_stats());
 
   data_reduction_proxy_service_->compression_stats()->GetContentLengths(
       days, original_content_length, received_content_length, last_update_time);
 }
 
 }  // namespace data_reduction_proxy