Reland "Move most of FrameLoader::CheckCompleted() to Document"

third_party/WebKit/Source/core/loader/FrameFetchContext.cpp

Index: third_party/WebKit/Source/core/loader/FrameFetchContext.cpp
diff --git a/third_party/WebKit/Source/core/loader/FrameFetchContext.cpp b/third_party/WebKit/Source/core/loader/FrameFetchContext.cpp
index d0011ef61e5c6130560ce20b823ca28e77e11caa..513288579dbf9325567bb90516b4e59c98567b3e 100644
--- a/third_party/WebKit/Source/core/loader/FrameFetchContext.cpp
+++ b/third_party/WebKit/Source/core/loader/FrameFetchContext.cpp
@@ -613,10 +613,11 @@ void FrameFetchContext::RecordLoadingActivity(
 }
 
 void FrameFetchContext::DidLoadResource(Resource* resource) {
+  if (!GetDocument())
+    return;
+  FirstMeaningfulPaintDetector::From(*GetDocument()).CheckNetworkStable();
   if (resource->IsLoadEventBlockingResourceType())
-    GetFrame()->Loader().CheckCompleted();
-  if (GetDocument())
-    FirstMeaningfulPaintDetector::From(*GetDocument()).CheckNetworkStable();
+    GetDocument()->CheckCompleted();
 }
 
 void FrameFetchContext::AddResourceTiming(const ResourceTimingInfo& info) {