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

content/public/browser/content_browser_client.cc

Index: content/public/browser/content_browser_client.cc
diff --git a/content/public/browser/content_browser_client.cc b/content/public/browser/content_browser_client.cc
index 153ad54607ad690b89e66ec0642a57e997388ac0..92f7691551c0265f4e5165bd1c5cf1842841a7af 100644
--- a/content/public/browser/content_browser_client.cc
+++ b/content/public/browser/content_browser_client.cc
@@ -114,6 +114,21 @@ std::unique_ptr<media::CdmFactory> ContentBrowserClient::CreateCdmFactory() {
   return nullptr;
 }
 
+bool ContentBrowserClient::ShouldAllowDisplayingInsecureContent(
+    bool allowed_per_settings,
+    const GURL& resource_url,
+    WebContents* web_contents) {
+  return false;
+}
+
+bool ContentBrowserClient::ShouldAllowRunningInsecureContent(
+    bool allowed_per_settings,
+    const url::Origin& origin,
+    const GURL& resource_url,
+    WebContents* web_contents) {
+  return false;
+}
+
 bool ContentBrowserClient::ShouldSwapProcessesForRedirect(
     ResourceContext* resource_context, const GURL& current_url,
     const GURL& new_url) {