Add MemoryCoordinator::GetGlobalMemoryState()

content/browser/memory/memory_coordinator.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_coordinator.h"
 
 #include "base/memory/memory_coordinator_client_registry.h"
 #include "base/metrics/histogram_macros.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/render_process_host.h"
@@ skipping 104 matching lines @@
 mojom::MemoryState MemoryCoordinator::GetChildMemoryState(
     int render_process_id) const {
   auto iter = children_.find(render_process_id);
   if (iter == children_.end())
     return mojom::MemoryState::UNKNOWN;
   return iter->second.memory_state;
 }
 
 void MemoryCoordinator::RecordMemoryPressure(
     base::MemoryPressureMonitor::MemoryPressureLevel level) {
-  int state = static_cast<int>(GetCurrentMemoryState());
+  DCHECK(GetGlobalMemoryState() != base::MemoryState::UNKNOWN);
+  int state = static_cast<int>(GetGlobalMemoryState());
   switch (level) {
     case base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_MODERATE:
       UMA_HISTOGRAM_ENUMERATION(
           "Memory.Coordinator.StateOnModerateNotificationReceived",
           state, base::kMemoryStateMax);
       break;
     case base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_CRITICAL:
       UMA_HISTOGRAM_ENUMERATION(
           "Memory.Coordinator.StateOnCriticalNotificationReceived",
           state, base::kMemoryStateMax);
       break;
     case base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_NONE:
       NOTREACHED();
   }
 }
 
+base::MemoryState MemoryCoordinator::GetGlobalMemoryState() const {
+  return base::MemoryState::UNKNOWN;
+}
+
 base::MemoryState MemoryCoordinator::GetCurrentMemoryState() const {
   return base::MemoryState::UNKNOWN;
 }
 
 void MemoryCoordinator::SetCurrentMemoryStateForTesting(
     base::MemoryState memory_state) {
 }
 
 void MemoryCoordinator::AddChildForTesting(
     int dummy_render_process_id, mojom::ChildMemoryCoordinatorPtr child) {
@@ skipping 44 matching lines @@
 
 MemoryCoordinator::ChildInfo::ChildInfo() {}
 
 MemoryCoordinator::ChildInfo::ChildInfo(const ChildInfo& rhs) {
   // This is a nop, but exists for compatibility with STL containers.
 }
 
 MemoryCoordinator::ChildInfo::~ChildInfo() {}
 
 }  // namespace content