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

content/browser/loader/resource_dispatcher_host_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
 
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
 
 #include <stddef.h>
 
@@ skipping 1666 matching lines @@
   // initial request.
   if (IsBrowserSideNavigationEnabled() &&
       IsResourceTypeFrame(request_data.resource_type)) {
     DCHECK(request->url().SchemeIs(url::kBlobScheme));
     return handler;
   }
 
   return AddStandardHandlers(request, request_data.resource_type,
                              resource_context,
                              request_data.fetch_request_context_type,
+                             request_data.fetch_mixed_content_context_type,
                              requester_info->appcache_service(), child_id,
                              route_id, std::move(handler));
 }
 
 std::unique_ptr<ResourceHandler>
 ResourceDispatcherHostImpl::AddStandardHandlers(
     net::URLRequest* request,
     ResourceType resource_type,
     ResourceContext* resource_context,
     RequestContextType fetch_request_context_type,
+    blink::WebMixedContent::ContextType fetch_mixed_content_context_type,
     AppCacheService* appcache_service,
     int child_id,
     int route_id,
     std::unique_ptr<ResourceHandler> handler) {
   // The InterceptingResourceHandler will replace its next handler with an
   // appropriate one based on the MIME type of the response if needed. It
   // should be placed at the end of the chain, just before |handler|.
   handler.reset(new InterceptingResourceHandler(std::move(handler), request));
   InterceptingResourceHandler* intercepting_handler =
       static_cast<InterceptingResourceHandler*>(handler.get());
 
   std::vector<std::unique_ptr<ResourceThrottle>> throttles;
 
   // Add a NavigationResourceThrottle for navigations.
   // PlzNavigate: the throttle is unnecessary as communication with the UI
   // thread is handled by the NavigationURLloader.
   if (!IsBrowserSideNavigationEnabled() && IsResourceTypeFrame(resource_type)) {
     throttles.push_back(base::MakeUnique<NavigationResourceThrottle>(
-        request, delegate_, fetch_request_context_type));
+        request, delegate_, fetch_request_context_type,
+        fetch_mixed_content_context_type));
   }
 
   if (delegate_) {
     delegate_->RequestBeginning(request,
                                 resource_context,
                                 appcache_service,
                                 resource_type,
                                 &throttles);
   }
 
@@ skipping 553 matching lines @@
   }
 
   std::unique_ptr<ResourceHandler> handler(
       new NavigationResourceHandler(new_request.get(), loader, delegate()));
 
   // TODO(davidben): Fix the dependency on child_id/route_id. Those are used
   // by the ResourceScheduler. currently it's a no-op.
   handler = AddStandardHandlers(
       new_request.get(), resource_type, resource_context,
       info.begin_params.request_context_type,
+      info.begin_params.mixed_content_context_type,
       appcache_handle_core ? appcache_handle_core->GetAppCacheService()
                            : nullptr,
       -1,  // child_id
       -1,  // route_id
       std::move(handler));
 
   BeginRequestInternal(std::move(new_request), std::move(handler));
 }
 
 void ResourceDispatcherHostImpl::EnableStaleWhileRevalidateForTesting() {
@@ skipping 523 matching lines @@
                                  &throttles);
     if (!throttles.empty()) {
       handler.reset(new ThrottlingResourceHandler(std::move(handler), request,
                                                   std::move(throttles)));
     }
   }
   return handler;
 }
 
 }  // namespace content