Send PING to check the status of the SPDY connection.

net/http/http_proxy_client_socket_pool_unittest.cc

Index: net/http/http_proxy_client_socket_pool_unittest.cc
===================================================================
--- net/http/http_proxy_client_socket_pool_unittest.cc	(revision 105385)
+++ net/http/http_proxy_client_socket_pool_unittest.cc	(working copy)
@@ -21,6 +21,7 @@
 #include "net/socket/client_socket_pool_histograms.h"
 #include "net/socket/socket_test_util.h"
 #include "net/spdy/spdy_protocol.h"
+#include "net/spdy/spdy_session.h"
 #include "net/spdy/spdy_test_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ -94,6 +95,16 @@
   virtual ~HttpProxyClientSocketPoolTest() {
   }
 
+  virtual void SetUp() OVERRIDE {
+    // Disable sending PING.
+    SpdySession::set_enable_ping_based_connection_checking(false);
+  }
+
+  virtual void TearDown() OVERRIDE {
+    // Enable sending PING.
+    SpdySession::set_enable_ping_based_connection_checking(true);
+  }
+
   void AddAuthToCache() {
     const string16 kFoo(ASCIIToUTF16("foo"));
     const string16 kBar(ASCIIToUTF16("bar"));