Provide renderers with memory pressure signals.

content/browser/memory/memory_message_filter.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/memory/memory_message_filter.h"
 
-#include "content/browser/memory/memory_pressure_controller.h"
+#include "content/browser/memory/memory_pressure_controller_impl.h"
 #include "content/common/memory_messages.h"
 
 namespace content {
 
 MemoryMessageFilter::MemoryMessageFilter(
     const BrowserChildProcessHost* child_process_host,
     ProcessType process_type)
     : BrowserMessageFilter(MemoryMsgStart),
       process_host_(child_process_host),
       process_type_(process_type) {
   DCHECK_NE(process_type_, PROCESS_TYPE_RENDERER);
 }
 
 MemoryMessageFilter::MemoryMessageFilter(
     const RenderProcessHost* render_process_host)
     : BrowserMessageFilter(MemoryMsgStart),
       process_host_(render_process_host),
       process_type_(PROCESS_TYPE_RENDERER) {}
 
 MemoryMessageFilter::~MemoryMessageFilter() {}
 
 void MemoryMessageFilter::OnFilterAdded(IPC::Sender* sender) {
-  MemoryPressureController::GetInstance()->OnMemoryMessageFilterAdded(this);
+  MemoryPressureControllerImpl::GetInstance()->OnMemoryMessageFilterAdded(this);
 }
 
 void MemoryMessageFilter::OnChannelClosing() {
-  MemoryPressureController::GetInstance()->OnMemoryMessageFilterRemoved(this);
+  MemoryPressureControllerImpl::GetInstance()
+      ->OnMemoryMessageFilterRemoved(this);
 }
 
 bool MemoryMessageFilter::OnMessageReceived(const IPC::Message& message) {
   return false;
 }
 
 void MemoryMessageFilter::SendSetPressureNotificationsSuppressed(
     bool suppressed) {
   Send(new MemoryMsg_SetPressureNotificationsSuppressed(suppressed));
 }
 
 void MemoryMessageFilter::SendSimulatePressureNotification(
     base::MemoryPressureListener::MemoryPressureLevel level) {
   Send(new MemoryMsg_SimulatePressureNotification(level));
 }
 
 void MemoryMessageFilter::SendPressureNotification(
     base::MemoryPressureListener::MemoryPressureLevel level) {
   Send(new MemoryMsg_PressureNotification(level));
 }
 
 }  // namespace content