Revert 148069 and 148060 to see if they were responsible for a perf regression

Source/WebCore/loader/cache/CachedRawResource.h

Index: Source/WebCore/loader/cache/CachedRawResource.h
diff --git a/Source/WebCore/loader/cache/CachedRawResource.h b/Source/WebCore/loader/cache/CachedRawResource.h
index 1a892a7bea47cd509a46dd1eef17070b868b35ce..c9c8afb2dff1dcd603e2ba597c4e59176fc1475f 100644
--- a/Source/WebCore/loader/cache/CachedRawResource.h
+++ b/Source/WebCore/loader/cache/CachedRawResource.h
@@ -29,6 +29,7 @@
 namespace WebCore {
 class CachedRawResourceCallback;
 class CachedRawResourceClient;
+class SubresourceLoader;
 
 class CachedRawResource : public CachedResource {
 public:
@@ -44,6 +45,7 @@ public:
     // FIXME: This is exposed for the InpsectorInstrumentation for preflights in DocumentThreadableLoader. It's also really lame.
     unsigned long identifier() const { return m_identifier; }
 
+    SubresourceLoader* loader() const;
     void clear();
 
     virtual bool canReuse(const ResourceRequest&) const;