Add MemoryCoordinator::GetGlobalMemoryState()

content/browser/memory/memory_coordinator.h

 // 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.
 
 #ifndef CONTENT_BROWSER_MEMORY_MEMORY_COORDINATOR_H_
 #define CONTENT_BROWSER_MEMORY_MEMORY_COORDINATOR_H_
 
 #include "base/memory/memory_coordinator_client_registry.h"
 #include "base/memory/memory_pressure_monitor.h"
 #include "base/process/process_handle.h"
@@ skipping 41 matching lines @@
   mojom::MemoryState GetChildMemoryState(int render_process_id) const;
 
   // Records memory pressure notifications. Called by MemoryPressureMonitor.
   // TODO(bashi): Remove this when MemoryPressureMonitor is retired.
   void RecordMemoryPressure(
       base::MemoryPressureMonitor::MemoryPressureLevel level);
 
   // Called when ChildMemoryCoordinator calls AddChild().
   virtual void OnChildAdded(int render_process_id) {}
 
+  // Returns the global memory state.
+  virtual base::MemoryState GetGlobalMemoryState() const;
+
+  // Returns the browser's current memory state. Note that the current state
+  // could be different from the global memory state as the browser won't be
+  // suspended.
   virtual base::MemoryState GetCurrentMemoryState() const;
+
+  // Sets the global memory state for testing.
   virtual void SetCurrentMemoryStateForTesting(base::MemoryState memory_state);
 
  protected:
   // Constructor. Protected as this is a singleton, but accessible for
   // unittests.
   MemoryCoordinator();
 
   // Adds the given ChildMemoryCoordinator as a child of this coordinator.
   void AddChildForTesting(int dummy_render_process_id,
                           mojom::ChildMemoryCoordinatorPtr child);
@@ skipping 36 matching lines @@
   ChildInfoMap children_;
 
   std::unique_ptr<MemoryCoordinatorDelegate> delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(MemoryCoordinator);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MEMORY_MEMORY_COORDINATOR_H_