Close idle connections / SPDY sessions when needed

net/socket/client_socket_pool.cc

Index: net/socket/client_socket_pool.cc
diff --git a/net/socket/client_socket_pool.cc b/net/socket/client_socket_pool.cc
index a1967efdbab2b12a340ad7cb37e8af1596d82f45..04d0b950da47a9aa4c77f0c0286fda8abb4a52b3 100644
--- a/net/socket/client_socket_pool.cc
+++ b/net/socket/client_socket_pool.cc
@@ -4,6 +4,7 @@
 
 #include "net/socket/client_socket_pool.h"
 
+#include "base/debug/alias.h"
 #include "base/logging.h"
 
 namespace {
@@ -21,6 +22,26 @@ int g_used_idle_socket_timeout_s = 300;  // 5 minutes
 
 namespace net {
 
+LayeredPool::LayeredPool() : magic_value_(ALIVE) {}
+
+LayeredPool::~LayeredPool() {
+  CrashIfFreed();
+  magic_value_ = DEAD;
+  stack_trace_ = base::debug::StackTrace();
+}
+
+void LayeredPool::CrashIfFreed() {
+  if (magic_value_ != ALIVE) {
+    MagicValue magic_value = magic_value_;
+    base::debug::StackTrace deletion_callstack = stack_trace_;
+
+    base::debug::Alias(&magic_value);
+    base::debug::Alias(&deletion_callstack);
+
+    CHECK(false);
+  }
+}
+
 // static
 base::TimeDelta ClientSocketPool::unused_idle_socket_timeout() {
   return base::TimeDelta::FromSeconds(g_unused_idle_socket_timeout_s);