Migrate WaitableEvent to enum-based constructor in content/

content/public/test/browser_test_utils.cc

Index: content/public/test/browser_test_utils.cc
diff --git a/content/public/test/browser_test_utils.cc b/content/public/test/browser_test_utils.cc
index d9f017d5bcf06773d42d2fca00488d487326b728..acec230a10ba65ea5dd1b8a53858527b07523fb0 100644
--- a/content/public/test/browser_test_utils.cc
+++ b/content/public/test/browser_test_utils.cc
@@ -814,7 +814,8 @@ bool ExecuteWebUIResourceTest(WebContents* web_contents,
 
 std::string GetCookies(BrowserContext* browser_context, const GURL& url) {
   std::string cookies;
-  base::WaitableEvent event(true, false);
+  base::WaitableEvent event(base::WaitableEvent::ResetPolicy::MANUAL,
+                            base::WaitableEvent::InitialState::NOT_SIGNALED);
   net::URLRequestContextGetter* context_getter =
       BrowserContext::GetDefaultStoragePartition(browser_context)->
           GetURLRequestContext();
@@ -831,7 +832,8 @@ bool SetCookie(BrowserContext* browser_context,
                const GURL& url,
                const std::string& value) {
   bool result = false;
-  base::WaitableEvent event(true, false);
+  base::WaitableEvent event(base::WaitableEvent::ResetPolicy::MANUAL,
+                            base::WaitableEvent::InitialState::NOT_SIGNALED);
   net::URLRequestContextGetter* context_getter =
       BrowserContext::GetDefaultStoragePartition(browser_context)->
           GetURLRequestContext();