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

content/common/frame_messages.h

Index: content/common/frame_messages.h
diff --git a/content/common/frame_messages.h b/content/common/frame_messages.h
index aad2aac168907df6c9d2db15ca492005438516fe..30b171ba0ae9adfb1553d439d427a95a483b7fc4 100644
--- a/content/common/frame_messages.h
+++ b/content/common/frame_messages.h
@@ -918,6 +918,20 @@ IPC_MESSAGE_ROUTED0(FrameMsg_SetHasReceivedUserGesture)
 IPC_MESSAGE_ROUTED1(FrameMsg_RunFileChooserResponse,
                     std::vector<content::FileChooserFileInfo>)
 
+// Updates the renderer about mixed content checks executed in the browser.
+// |feature| lists all unique IDs for mixed content feature used while checking
+// for mixed content the associated frame load.
+// Note: if we ever need to report other non-mixed content features it might be
+// better move this member into another IPC/struct specific for that.
+// The |mixed_content_*| members are used to report found mixed content to the
+// CSP policy. If |mixed_content_was_found| is true the following members will
+// contain related information. Otherwise they should be ignored.
+IPC_MESSAGE_ROUTED4(FrameMsg_MixedContentUpdate,
+                    std::set<int>, /* features */
+                    bool,          /* mixed_content_was_found */
+                    GURL,          /* mixed_content_url */
+                    bool)          /* mixed_content_had_redirect */
+
 // -----------------------------------------------------------------------------
 // Messages sent from the renderer to the browser.