Refactor the API for setting dynamic resource load priorities

Source/core/fetch/ResourceLoader.cpp

Index: Source/core/fetch/ResourceLoader.cpp
diff --git a/Source/core/fetch/ResourceLoader.cpp b/Source/core/fetch/ResourceLoader.cpp
index be3969ee8743334b159c6d6684be98c343c3ba5b..ce3d703c0196f47460fd95a32f0521b02a94861f 100644
--- a/Source/core/fetch/ResourceLoader.cpp
+++ b/Source/core/fetch/ResourceLoader.cpp
@@ -206,16 +206,9 @@ void ResourceLoader::didFinishLoadingOnePart(double finishTime, int64_t encodedD
 
 void ResourceLoader::didChangePriority(ResourceLoadPriority loadPriority, int intraPriorityValue)
 {
-    if (m_loader) {
-        m_fetcher->didChangeLoadingPriority(m_resource, loadPriority, intraPriorityValue);
-        ASSERT(m_state != Terminated);
+    ASSERT(m_state != Terminated);
+    if (m_loader)
         m_loader->didChangePriority(static_cast<WebURLRequest::Priority>(loadPriority), intraPriorityValue);
-    }
-}
-
-bool ResourceLoader::shouldUseIncreasedPriorities()
-{
-    return m_fetcher->context().fetchIncreasePriorities();
 }
 
 void ResourceLoader::cancelIfNotFinishing()