Remove RenderThreadImpl::Shutdown

base/at_exit.cc

Index: base/at_exit.cc
diff --git a/base/at_exit.cc b/base/at_exit.cc
index cfe4cf9a587cc3da54e0ec3bc693e860beec425c..5dcc83cb2f5c390ab8cdbc19ba601ec3fd01ab0b 100644
--- a/base/at_exit.cc
+++ b/base/at_exit.cc
@@ -22,6 +22,8 @@ namespace base {
 // this for thread-safe access, since it will only be modified in testing.
 static AtExitManager* g_top_manager = NULL;
 
+static bool g_disable_managers = false;
+
 AtExitManager::AtExitManager()
     : processing_callbacks_(false), next_manager_(g_top_manager) {
 // If multiple modules instantiate AtExitManagers they'll end up living in this
@@ -39,7 +41,8 @@ AtExitManager::~AtExitManager() {
   }
   DCHECK_EQ(this, g_top_manager);
 
-  ProcessCallbacksNow();
+  if (!g_disable_managers)
+    ProcessCallbacksNow();
   g_top_manager = next_manager_;
 }
 
@@ -88,6 +91,11 @@ void AtExitManager::ProcessCallbacksNow() {
   DCHECK(g_top_manager->stack_.empty());
 }
 
+void AtExitManager::DisableAllAtExitManagers() {
+  AutoLock lock(g_top_manager->lock_);
+  g_disable_managers = true;
+}
+
 AtExitManager::AtExitManager(bool shadow)
     : processing_callbacks_(false), next_manager_(g_top_manager) {
   DCHECK(shadow || !g_top_manager);