[NotForReview] An idea for experimenting purge & suspend

content/renderer/render_thread_impl.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 "content/renderer/render_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <utility>
@@ skipping 816 matching lines @@
       media::MediaCodecUtil::IsMediaCodecAvailable()) {
     media::EnablePlatformDecoderSupport();
   }
 #endif
 
   memory_pressure_listener_.reset(new base::MemoryPressureListener(
       base::Bind(&RenderThreadImpl::OnMemoryPressure, base::Unretained(this)),
       base::Bind(&RenderThreadImpl::OnSyncMemoryPressure,
                  base::Unretained(this))));
 
-  if (base::FeatureList::IsEnabled(features::kMemoryCoordinator)) {
+  if (ChildMemoryCoordinatorImpl::IsEnabled()) {
     // TODO(bashi): Revisit how to manage the lifetime of
     // ChildMemoryCoordinatorImpl.
     // https://codereview.chromium.org/2094583002/#msg52
     mojom::MemoryCoordinatorHandlePtr parent_coordinator;
     GetRemoteInterfaces()->GetInterface(mojo::GetProxy(&parent_coordinator));
     memory_coordinator_ = CreateChildMemoryCoordinator(
         std::move(parent_coordinator), this);
   }
 
   int num_raster_threads = 0;
@@ skipping 1461 matching lines @@
   if (blink::mainThreadIsolate()) {
     blink::mainThreadIsolate()->MemoryPressureNotification(
         v8::MemoryPressureLevel::kCritical);
     blink::MemoryPressureNotificationToWorkerThreadIsolates(
         v8::MemoryPressureLevel::kCritical);
   }
 }
 
 
 }  // namespace content