Set WebFont priority to very low if the network is detected to be slow

third_party/WebKit/Source/core/fetch/FontResource.cpp

Index: third_party/WebKit/Source/core/fetch/FontResource.cpp
diff --git a/third_party/WebKit/Source/core/fetch/FontResource.cpp b/third_party/WebKit/Source/core/fetch/FontResource.cpp
index 2de0a247cda364998c55aca696d0456f8f37c313..fd9bf9e757ba7a0cd2e0e7e211a000a6f26a5b9d 100644
--- a/third_party/WebKit/Source/core/fetch/FontResource.cpp
+++ b/third_party/WebKit/Source/core/fetch/FontResource.cpp
@@ -175,4 +175,16 @@ void FontResource::checkNotify() {
   Resource::checkNotify();
 }
 
+bool FontResource::isLowPriorityLoadingAllowedForRemoteFont() const {
+  DCHECK(!url().protocolIsData());
+  DCHECK(!isLoaded());
+  ResourceClientWalker<FontResourceClient> walker(clients());
+  while (FontResourceClient* client = walker.next()) {
+    if (!client->isLowPriorityLoadingAllowedForRemoteFont()) {
+      return false;
+    }
+  }
+  return true;
+}
+
 }  // namespace blink