Bug 881804 (part 4) - Plumb layout into predictive network actions. r=bz

layout/style/Loader.cpp

@@ -47,6 +47,7 @@
 #include "nsGkAtoms.h"
 #include "nsIThreadInternal.h"
 #include "nsCrossSiteListenerProxy.h"
+#include "nsINetworkSeer.h"
 
 #ifdef MOZ_XUL
 #include "nsXULPrototypeCache.h"
@@ -1433,6 +1434,12 @@ Loader::LoadSheet(SheetLoadData* aLoadData, StyleSheetState aSheetState)
       return rv;
     }
 
+    if (mDocument) {
+      mozilla::net::SeerLearn(aLoadData->mURI, mDocument->GetDocumentURI(),
+                              nsINetworkSeer::LEARN_LOAD_SUBRESOURCE,
+                              mDocument);
+    }
+
     // Just load it
     nsCOMPtr<nsIInputStream> stream;
     nsCOMPtr<nsIChannel> channel;
@@ -1606,6 +1613,11 @@ Loader::LoadSheet(SheetLoadData* aLoadData, StyleSheetState aSheetState)
     channelListener = streamLoader;
   }
 
+  if (mDocument) {
+    mozilla::net::SeerLearn(aLoadData->mURI, mDocument->GetDocumentURI(),
+                            nsINetworkSeer::LEARN_LOAD_SUBRESOURCE, mDocument);
+  }
+
   rv = channel->AsyncOpen(channelListener, nullptr);
 
 #ifdef DEBUG

layout/style/nsFontFaceLoader.cpp

@@ -29,6 +29,7 @@
 #include "nsIContentSecurityPolicy.h"
 #include "nsIDocShell.h"
 #include "nsIWebNavigation.h"
+#include "nsINetworkSeer.h"
 
 #include "nsIConsoleService.h"
 
@@ -375,6 +376,10 @@ nsUserFontSet::StartLoad(gfxMixedFontFamily* aFamily,
   rv = NS_NewStreamLoader(getter_AddRefs(streamLoader), fontLoader);
   NS_ENSURE_SUCCESS(rv, rv);
 
+  nsIDocument *document = ps->GetDocument();
+  mozilla::net::SeerLearn(aFontFaceSrc->mURI, document->GetDocumentURI(),
+                          nsINetworkSeer::LEARN_LOAD_SUBRESOURCE, loadGroup);
+
   bool inherits = false;
   rv = NS_URIChainHasFlags(aFontFaceSrc->mURI,
                            nsIProtocolHandler::URI_INHERITS_SECURITY_CONTEXT,