Make cc::SoftwareImageDecodeController, cc::ResourcePool, and cc::StagingBufferPoo…

components/memory_coordinator/browser/memory_coordinator.cc

Index: components/memory_coordinator/browser/memory_coordinator.cc
diff --git a/components/memory_coordinator/browser/memory_coordinator.cc b/components/memory_coordinator/browser/memory_coordinator.cc
index c1119c98e4bdc57e27ecc5e14778cfab9f405619..6399d0c09a2994cbb301eb4a05739382da6e5ca2 100644
--- a/components/memory_coordinator/browser/memory_coordinator.cc
+++ b/components/memory_coordinator/browser/memory_coordinator.cc
@@ -42,11 +42,14 @@ MemoryCoordinator* MemoryCoordinator::GetInstance() {
 }
 
 MemoryCoordinator::MemoryCoordinator()
-    : pressure_listener_(
-          base::Bind(&MemoryCoordinator::OnMemoryPressure,
-                     base::Unretained(this))) {}
+    : pressure_listener_(base::Bind(&MemoryCoordinator::OnMemoryPressure,
+                                    base::Unretained(this))) {
+  ClientRegistry::SetInstance(this);
+}
 
-MemoryCoordinator::~MemoryCoordinator() {}
+MemoryCoordinator::~MemoryCoordinator() {
+  ClientRegistry::SetInstance(nullptr);
+}
 
 void MemoryCoordinator::CreateHandle(
     int render_process_id,