Add HTTP-specific metrics for password forms

chrome/browser/password_manager/chrome_password_manager_client.cc

Index: chrome/browser/password_manager/chrome_password_manager_client.cc
diff --git a/chrome/browser/password_manager/chrome_password_manager_client.cc b/chrome/browser/password_manager/chrome_password_manager_client.cc
index 51c51b2d058bf9beafd748a263c40839d56de5fe..62bd164680d795bea9e57ea43cb983781c968add 100644
--- a/chrome/browser/password_manager/chrome_password_manager_client.cc
+++ b/chrome/browser/password_manager/chrome_password_manager_client.cc
@@ -56,6 +56,7 @@
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/ssl_status.h"
 #include "content/public/browser/web_contents.h"
+#include "content/public/common/origin_util.h"
 #include "extensions/features/features.h"
 #include "google_apis/gaia/gaia_urls.h"
 #include "net/base/url_util.h"
@@ -570,6 +571,10 @@ const GURL& ChromePasswordManagerClient::GetMainFrameURL() const {
   return web_contents()->GetVisibleURL();
 }
 
+bool ChromePasswordManagerClient::IsMainFrameSecure() const {
+  return content::IsOriginSecure(web_contents()->GetVisibleURL());
+}
+
 const GURL& ChromePasswordManagerClient::GetLastCommittedEntryURL() const {
   DCHECK(web_contents());
   content::NavigationEntry* entry =