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

content/browser/frame_host/render_frame_host_delegate.h

Index: content/browser/frame_host/render_frame_host_delegate.h
diff --git a/content/browser/frame_host/render_frame_host_delegate.h b/content/browser/frame_host/render_frame_host_delegate.h
index 4f3178036cda45d6dee1f0b9e6f4d0bbd2672ad9..d4434a34f38c83d50662a5d32423bcfad5eee389 100644
--- a/content/browser/frame_host/render_frame_host_delegate.h
+++ b/content/browser/frame_host/render_frame_host_delegate.h
@@ -41,6 +41,10 @@ namespace gfx {
 class Rect;
 }
 
+namespace url {
+class Origin;
+}
+
 namespace content {
 class FrameTreeNode;
 class InterstitialPage;
@@ -269,6 +273,22 @@ class CONTENT_EXPORT RenderFrameHostDelegate {
                                  const gfx::Rect& initial_rect,
                                  bool user_gesture) {}
 
+  // Notifies that mixed-content was displayed or ran within the container

[nasko, 2017/01/12 18:32:38]

You mean within the RenderFrameHost that is reporting this, right? Will there be
a case where one RFH reports about mixed content in another RFH?

[carlosk, 2017/01/21 02:54:59]

This report only matters at the WebContents level and that's what I meant to
explain. Rephrased by that last part as it doesn't really matter here.

+  // WebContents.
+  virtual void DidDisplayInsecureContent() {}
+  virtual void DidRunInsecureContent(const GURL& security_origin,
+                                     const GURL& target_url) {}
+
+  // Reports that passive mixed content was found at the specified url.
+  virtual void PassiveInsecureContentFound(const GURL& resource_url) {}
+
+  // Checks if running of active 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);
+
  protected:
   virtual ~RenderFrameHostDelegate() {}
 };