PlzNavigate: Move navigation-level mixed content checks to the browser.

content/common/origin_util.cc

Index: content/common/origin_util.cc
diff --git a/content/common/origin_util.cc b/content/common/origin_util.cc
index d6e806a3c85073b7e287415ebc2c1a93f9533d1f..06f06a29f5cdf55d548437f3e0bf8dba846202ea 100644
--- a/content/common/origin_util.cc
+++ b/content/common/origin_util.cc
@@ -30,9 +30,8 @@ bool IsOriginSecure(const GURL& url) {
   if (base::ContainsValue(url::GetSecureSchemes(), url.scheme()))
     return true;
 
-  if (base::ContainsValue(GetSecureOrigins(), url.GetOrigin())) {
+  if (IsOriginWhiteListedTrustworthy(url))
     return true;
-  }
 
   return false;
 }
@@ -48,4 +47,8 @@ bool OriginCanAccessServiceWorkers(const GURL& url) {
   return false;
 }
 
+bool IsOriginWhiteListedTrustworthy(const GURL& url) {
+  return base::ContainsValue(GetSecureOrigins(), url.GetOrigin());
+}
+
 }  // namespace content