Added regression test for event listeners memory leak.

webkit/tools/test_shell/run_all_tests.cc

Index: webkit/tools/test_shell/run_all_tests.cc
diff --git a/webkit/tools/test_shell/run_all_tests.cc b/webkit/tools/test_shell/run_all_tests.cc
index 2277c2ae158422b9faaae621c258fb98dc3fbb17..94c08b73670be31fa3e515ee3cc292f506f6f5f0 100644
--- a/webkit/tools/test_shell/run_all_tests.cc
+++ b/webkit/tools/test_shell/run_all_tests.cc
@@ -26,6 +26,7 @@
 #include "webkit/tools/test_shell/simple_resource_loader_bridge.h"
 #include "webkit/tools/test_shell/test_shell.h"
 #include "webkit/tools/test_shell/test_shell_platform_delegate.h"
+#include "webkit/tools/test_shell/test_shell_switches.h"
 #include "webkit/tools/test_shell/test_shell_test.h"
 #include "webkit/tools/test_shell/test_shell_webkit_init.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -58,6 +59,13 @@ int main(int argc, char* argv[]) {
   const CommandLine& parsed_command_line = *CommandLine::ForCurrentProcess();
   TestShellPlatformDelegate platform(parsed_command_line);
 
+  // Allow tests to analyze GC information from V8 log, and expose GC
+  // triggering function.
+  std::wstring js_flags =
+      parsed_command_line.GetSwitchValue(test_shell::kJavaScriptFlags);
+  js_flags += L" --logfile=* --log_gc --expose_gc";
+  webkit_glue::SetJavaScriptFlags(js_flags);
+
   // Suppress error dialogs and do not show GP fault error box on Windows.
   TestShell::InitLogging(true, false, false);