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

content/public/browser/content_browser_client.h

Index: content/public/browser/content_browser_client.h
diff --git a/content/public/browser/content_browser_client.h b/content/public/browser/content_browser_client.h
index 644dc79b2ffa87a2a6834e527349150bf0113475..c9fe505e1fb7abadd5d0d03e42595341beafffb2 100644
--- a/content/public/browser/content_browser_client.h
+++ b/content/public/browser/content_browser_client.h
@@ -743,6 +743,19 @@ class CONTENT_EXPORT ContentBrowserClient {
   // protected content.
   virtual std::unique_ptr<media::CdmFactory> CreateCdmFactory();
 
+  // Checks if displaying of mixed-content is allowed for the specified
+  // WebContents/tab.
+  virtual bool ShouldAllowDisplayingInsecureContent(bool allowed_per_settings,
+                                                    const GURL& resource_url,
+                                                    WebContents* web_contents);
+
+  // Checks if running of mixed-content is allowed for the specified
+  // WebContents/tab.
+  virtual bool ShouldAllowRunningInsecureContent(bool allowed_per_settings,
+                                                 const url::Origin& origin,
+                                                 const GURL& resource_url,
+                                                 WebContents* web_contents);
+
   // Populates |mappings| with all files that need to be mapped before launching
   // a child process.
 #if defined(OS_ANDROID)