Add MemoryCoordinator::SetClientMemoryState and GetClientMemoryState

content/browser/memory/memory_coordinator.h

Index: content/browser/memory/memory_coordinator.h
diff --git a/content/browser/memory/memory_coordinator.h b/content/browser/memory/memory_coordinator.h
index f674ef5b48ce950e5c442c24e73aef850940251d..20a4e0f3d778a86d3309bb9c5b9d31e0b941357e 100644
--- a/content/browser/memory/memory_coordinator.h
+++ b/content/browser/memory/memory_coordinator.h
@@ -42,10 +42,16 @@ class CONTENT_EXPORT MemoryCoordinator {
   bool SetMemoryState(
       int render_process_id, mojom::MemoryState memory_state);
 
+  // Dispatches a memory state change to registered MemoryCoordinatorClients.
+  void SetClientMemoryState(base::MemoryState memory_state);
+
   // Returns the memory state of the specified render process. Returns UNKNOWN
   // if the process is not tracked by this coordinator.
   mojom::MemoryState GetMemoryState(int render_process_id) const;
 
+  // Returns the memory state of registered MemoryCoordinatorClients.
+  base::MemoryState GetClientMemoryState() const;
+
  protected:
   // Constructor. Protected as this is a singleton, but accessible for
   // unittests.
@@ -86,6 +92,8 @@ class CONTENT_EXPORT MemoryCoordinator {
   // disconnected.
   ChildInfoMap children_;
 
+  base::MemoryState client_memory_state_;
+
   DISALLOW_COPY_AND_ASSIGN(MemoryCoordinator);
 };