Fix Mirror header on Drive domains.

components/signin/core/browser/signin_header_helper.h

Index: components/signin/core/browser/signin_header_helper.h
diff --git a/components/signin/core/browser/signin_header_helper.h b/components/signin/core/browser/signin_header_helper.h
index 53d3797b798479f9cee8b1c04c50d82f4372d52e..9f000bc6411d560b29f9b15418d559d9bc4e021f 100644
--- a/components/signin/core/browser/signin_header_helper.h
+++ b/components/signin/core/browser/signin_header_helper.h
@@ -76,10 +76,10 @@ bool SettingsAllowSigninCookies(
     const content_settings::CookieSettings* cookie_settings);
 
 // Checks if the url has the required properties to have an
-// X-CHROME-CONNECTED header.
+// X-Chrome-Connected header.
 bool IsUrlEligibleForXChromeConnectedHeader(const GURL& url);
 
-// Returns the X-CHROME-CONNECTED cookie, or an empty string if it should not be
+// Returns the CHROME_CONNECTED cookie, or an empty string if it should not be
 // added to the request to |url|.
 std::string BuildMirrorRequestCookieIfPossible(
     const GURL& url,