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

third_party/WebKit/Source/web/WebLocalFrameImpl.cpp

Index: third_party/WebKit/Source/web/WebLocalFrameImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebLocalFrameImpl.cpp b/third_party/WebKit/Source/web/WebLocalFrameImpl.cpp
index 2f43443c53e210cc7b80effedd9cced05ce55a5a..bad6f49a5b41b8dcfe1957a851377d4102ac42ea 100644
--- a/third_party/WebKit/Source/web/WebLocalFrameImpl.cpp
+++ b/third_party/WebKit/Source/web/WebLocalFrameImpl.cpp
@@ -2015,6 +2015,32 @@ void WebLocalFrameImpl::loadData(const WebData& data,
       static_cast<HistoryLoadType>(webHistoryLoadType));
 }
 
+void WebLocalFrameImpl::mixedContentUpdateFromBrowser(
+    const std::set<int>& features,
+    bool mixedContentWasFound,
+    const WebURL& mixedContentUrl,
+    bool mixedContentHadRedirect) {
+  // Assimilate all features detected during mixed content checks in the
+  // browser.
+  DCHECK(!features.empty() || mixedContentWasFound);
+  for (int feature : features) {
+    UseCounter::count(frame(), static_cast<UseCounter::Feature>(feature));
+  }
+
+  // Report found mixed content to the CSP policy.
+  if (mixedContentWasFound) {
+    ContentSecurityPolicy* policy =
+        frame()->securityContext()->contentSecurityPolicy();
+    if (policy) {
+      policy->reportMixedContent(
+          mixedContentUrl,
+          mixedContentHadRedirect
+              ? ResourceRequest::RedirectStatus::FollowedRedirect
+              : ResourceRequest::RedirectStatus::NoRedirect);
+    }
+  }
+}
+
 bool WebLocalFrameImpl::maybeRenderFallbackContent(
     const WebURLError& error) const {
   DCHECK(frame());