diff --git child/child_thread_impl.cc child/child_thread_impl.cc
index 782c5d5..d1de033 100644
--- child/child_thread_impl.cc
+++ child/child_thread_impl.cc
@@ -512,10 +512,6 @@ void ChildThreadImpl::Init(const Options& options) {
 }
 
 ChildThreadImpl::~ChildThreadImpl() {
-  // ChildDiscardableSharedMemoryManager has to be destroyed while
-  // |thread_safe_sender_| is still valid.
-  discardable_shared_memory_manager_.reset();
-
 #ifdef IPC_MESSAGE_LOG_ENABLED
   IPC::Logging::GetInstance()->SetIPCSender(NULL);
 #endif
@@ -541,6 +537,9 @@ void ChildThreadImpl::Shutdown() {
   file_system_dispatcher_.reset();
   quota_dispatcher_.reset();
   WebFileSystemImpl::DeleteThreadSpecificInstance();
+  // ChildDiscardableSharedMemoryManager has to be destroyed while
+  // |thread_safe_sender_| is still valid.
+  discardable_shared_memory_manager_.reset();
 }
 
 void ChildThreadImpl::OnChannelConnected(int32 peer_pid) {
diff --git renderer/render_thread_impl.cc renderer/render_thread_impl.cc
index aa5828c..52f65b1 100644
--- renderer/render_thread_impl.cc
+++ renderer/render_thread_impl.cc
@@ -765,8 +765,6 @@ void RenderThreadImpl::Shutdown() {
   FOR_EACH_OBSERVER(
       RenderProcessObserver, observers_, OnRenderProcessShutdown());
 
-  ChildThreadImpl::Shutdown();
-
   if (memory_observer_) {
     message_loop()->RemoveTaskObserver(memory_observer_.get());
     memory_observer_.reset();
@@ -857,6 +855,8 @@ void RenderThreadImpl::Shutdown() {
   NPChannelBase::CleanupChannels();
 #endif
 
+  ChildThreadImpl::Shutdown();
+
   // Shut down the message loop and the renderer scheduler before shutting down
   // Blink. This prevents a scenario where a pending task in the message loop
   // accesses Blink objects after Blink shuts down.