Launch browser when --memlog is specified on the command line.

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index a76c7657f2b0e7bbf6870b4a513cdfc2942a3634..287f5f71b9e4a58f2544618218b078d2eee63cf4 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -1129,6 +1129,14 @@ extern const char kEnableInputImeAPI[] = "enable-input-ime-api";
 extern const char kEnableNewAppMenuIcon[] = "enable-new-app-menu-icon";
 #endif
 
+#if BUILDFLAG(ENABLE_OOP_HEAP_PROFILING)
+// Enables the out-of-process memory logging.
+const char kMemlog[] = "memlog";
+
+// Communicates the pipe name for out-of-process memory logging.
+const char kMemlogPipe[] = "memlog-pipe";
+#endif
+
 bool ExtensionsDisabled(const base::CommandLine& command_line) {
   return command_line.HasSwitch(switches::kDisableExtensions) ||
          command_line.HasSwitch(switches::kDisableExtensionsExcept);