[NotForReview] An idea for experimenting purge & suspend

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..b2dad739903383d41482f283273ae8199f7eb62e 100644
--- a/content/browser/memory/memory_coordinator.h
+++ b/content/browser/memory/memory_coordinator.h
@@ -26,6 +26,9 @@ class CONTENT_EXPORT MemoryCoordinator {
  public:
   ~MemoryCoordinator();
 
+  // Returns true when memory coordinator is enabled.
+  static bool IsEnabled();
+
   // Singleton factory/accessor.
   static MemoryCoordinator* GetInstance();
 
@@ -46,6 +49,11 @@ class CONTENT_EXPORT MemoryCoordinator {
   // if the process is not tracked by this coordinator.
   mojom::MemoryState GetMemoryState(int render_process_id) const;
 
+  // Purges and suspends a child. This is an experimental mechanism and
+  // should not be exposed as an API. Returns true when memory coordinator
+  // sends a request to purge and suspend to the child process.
+  bool PurgeAndSuspendChild(int render_process_id);
+
  protected:
   // Constructor. Protected as this is a singleton, but accessible for
   // unittests.