Implement $Secure- cookie prefix

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index c607c2c97040ee9081cc620b3f1ec50cf680e72a..4b0d9ff8f2c625c7ed673c46e3c80ce818339afd 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -642,7 +642,9 @@ void CreateUsbDeviceManager(
 }  // namespace
 
 ChromeContentBrowserClient::ChromeContentBrowserClient()
-    :
+    : experimental_web_platform_features_enabled_(
+          base::CommandLine::ForCurrentProcess()
+              ->HasSwitch(switches::kEnableExperimentalWebPlatformFeatures)),
       weak_factory_(this) {
 #if defined(ENABLE_PLUGINS)
   for (size_t i = 0; i < arraysize(kPredefinedAllowedDevChannelOrigins); ++i)
@@ -2697,6 +2699,10 @@ void ChromeContentBrowserClient::OverridePageVisibilityState(
   }
 }
 
+bool ChromeContentBrowserClient::ExperimentalFeaturesEnabled() {
+  return experimental_web_platform_features_enabled_;
+}
+
 #if defined(ENABLE_WEBRTC)
 void ChromeContentBrowserClient::MaybeCopyDisableWebRtcEncryptionSwitch(
     base::CommandLine* to_command_line,