memory coordinator: Remove obsoleted variation parameters

content/browser/memory/memory_condition_observer.cc

 // Copyright 2016 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 "content/browser/memory/memory_condition_observer.h"
 
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/string_number_conversions.h"
 #include "components/variations/variations_associated_data.h"
 #include "content/browser/memory/memory_monitor.h"
@@ skipping 117 matching lines @@
   new_renderers_until_critical_ = kDefaultNewRenderersUntilCritical;
   new_renderers_back_to_normal_ = kDefaultNewRenderersBackToNormal;
   new_renderers_back_to_warning_ = kDefaultNewRenderersBackToWarning;
   monitoring_interval_ =
       base::TimeDelta::FromSeconds(kDefaultMonitoringIntervalSeconds);
 
   // Override default parameters with variations.
   static constexpr char kMemoryCoordinatorV0Trial[] = "MemoryCoordinatorV0";
   std::map<std::string, std::string> params;
   variations::GetVariationParams(kMemoryCoordinatorV0Trial, &params);
-  // TODO(bashi): Renaming (throttled -> warning, suspended -> critical) is
-  // ongoing. Get variation parameters from both until server-side change
-  // is done. crbug.com/696844
   SetIntVariationParameter(params, "expected_renderer_size",
                            &expected_renderer_size_);
-  SetIntVariationParameter(params, "new_renderers_until_throttled",
-                           &new_renderers_until_warning_);
   SetIntVariationParameter(params, "new_renderers_until_warning",
                            &new_renderers_until_warning_);
-  SetIntVariationParameter(params, "new_renderers_until_suspended",
-                           &new_renderers_until_critical_);
   SetIntVariationParameter(params, "new_renderers_until_critical",
                            &new_renderers_until_critical_);
   SetIntVariationParameter(params, "new_renderers_back_to_normal",
                            &new_renderers_back_to_normal_);
-  SetIntVariationParameter(params, "new_renderers_back_to_throttled",
-                           &new_renderers_back_to_warning_);
   SetIntVariationParameter(params, "new_renderers_back_to_warning",
                            &new_renderers_back_to_warning_);
   SetSecondsVariationParameter(params, "monitoring_interval",
                                &monitoring_interval_);
 }
 
 bool MemoryConditionObserver::ValidateParameters() {
   return (new_renderers_until_warning_ > new_renderers_until_critical_) &&
          (new_renderers_back_to_normal_ > new_renderers_back_to_warning_) &&
          (new_renderers_back_to_normal_ > new_renderers_until_warning_) &&
          (new_renderers_back_to_warning_ > new_renderers_until_critical_);
 }
 
 }  // namespace content