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

content/browser/frame_host/navigation_handle_impl.h

Index: content/browser/frame_host/navigation_handle_impl.h
diff --git a/content/browser/frame_host/navigation_handle_impl.h b/content/browser/frame_host/navigation_handle_impl.h
index ac7680ab0ba80d7ac6dc5ac172a9e09363bb604b..1cfe3467c491bae54ada1ae615b677e384bdf7b3 100644
--- a/content/browser/frame_host/navigation_handle_impl.h
+++ b/content/browser/frame_host/navigation_handle_impl.h
@@ -18,6 +18,7 @@
 #include "content/common/content_export.h"
 #include "content/public/browser/navigation_data.h"
 #include "content/public/browser/navigation_throttle.h"
+#include "content/public/common/request_context_type.h"
 #include "url/gurl.h"
 
 struct FrameHostMsg_DidCommitProvisionalLoad_Params;
@@ -26,7 +27,6 @@ namespace content {
 
 class NavigatorDelegate;
 class ResourceRequestBodyImpl;
-struct NavigationRequestInfo;
 
 // This class keeps track of a single navigation. It is created upon receipt of
 // a DidStartProvisionalLoad IPC in a RenderFrameHost. The RenderFrameHost owns
@@ -163,6 +163,10 @@ class CONTENT_EXPORT NavigationHandleImpl : public NavigationHandle {
     return resource_request_body_;
   }
 
+  RequestContextType fetch_request_context_type() const {
+    return fetch_request_context_type_;
+  }
+
   typedef base::Callback<void(NavigationThrottle::ThrottleCheckResult)>
       ThrottleChecksFinishedCallback;
 
@@ -176,6 +180,7 @@ class CONTENT_EXPORT NavigationHandleImpl : public NavigationHandle {
       bool has_user_gesture,
       ui::PageTransition transition,
       bool is_external_protocol,
+      RequestContextType fetch_request_context_type,
       const ThrottleChecksFinishedCallback& callback);
 
   // Called when the URLRequest will be redirected in the network stack.
@@ -309,6 +314,9 @@ class CONTENT_EXPORT NavigationHandleImpl : public NavigationHandle {
   // The unique id of the corresponding NavigationEntry.
   int pending_nav_entry_id_;
 
+  // The fetch request context type.
+  RequestContextType fetch_request_context_type_;
+
   // This callback will be run when all throttle checks have been performed.
   ThrottleChecksFinishedCallback complete_callback_;