Disable MemoryPressureListener when memory coordinator is enabled

content/browser/devtools/protocol/memory_handler.cc

 // Copyright 2015 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/devtools/protocol/memory_handler.h"
 
 #include "base/memory/memory_pressure_listener.h"
 #include "base/strings/stringprintf.h"
 #include "content/browser/memory/memory_pressure_controller_impl.h"
+#include "content/public/common/content_features.h"
 
 namespace content {
 namespace devtools {
 namespace memory {
 
 MemoryHandler::MemoryHandler() {}
 
 MemoryHandler::~MemoryHandler() {}
 
 MemoryHandler::Response MemoryHandler::SetPressureNotificationsSuppressed(
     bool suppressed) {
+  if (base::FeatureList::IsEnabled(features::kMemoryCoordinator)) {
+    return Response::InvalidParams(
+        "Cannot enable/disable notifications when memory coordinator is "
+        "enabled");
+  }
   content::MemoryPressureControllerImpl::GetInstance()
       ->SetPressureNotificationsSuppressedInAllProcesses(suppressed);
   return Response::OK();
 }
 
 MemoryHandler::Response MemoryHandler::SimulatePressureNotification(
     const std::string& level) {
   base::MemoryPressureListener::MemoryPressureLevel parsed_level;
   if (level == kPressureLevelModerate) {
     parsed_level = base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_MODERATE;
   } else if (level == kPressureLevelCritical) {
     parsed_level = base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_CRITICAL;
   } else {
     return Response::InternalError(base::StringPrintf(
         "Invalid memory pressure level '%s'", level.c_str()));
   }
 
   MemoryPressureControllerImpl::GetInstance()
       ->SimulatePressureNotificationInAllProcesses(parsed_level);
   return Response::OK();
 }
 
 }  // namespace memory
 }  // namespace devtools
 }  // namespace content