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

third_party/WebKit/Source/core/dom/Document.h

Index: third_party/WebKit/Source/core/dom/Document.h
diff --git a/third_party/WebKit/Source/core/dom/Document.h b/third_party/WebKit/Source/core/dom/Document.h
index c650a95bd9df0b206c80b9e9e4e8ca4b9fbbaa72..208594ee979eab37cce0e2b25ac9a96c579a25d2 100644
--- a/third_party/WebKit/Source/core/dom/Document.h
+++ b/third_party/WebKit/Source/core/dom/Document.h
@@ -566,8 +566,8 @@ class CORE_EXPORT Document : public ContainerNode,
   void close(ExceptionState&);
   // This is used internally and does not handle exceptions.
   void close();
-  // implicitClose() actually does the work of closing the input stream.
-  void ImplicitClose();
+
+  void CheckCompleted();
 
   bool DispatchBeforeUnloadEvent(ChromeClient&,
                                  bool is_reload,
@@ -680,9 +680,6 @@ class CORE_EXPORT Document : public ContainerNode,
   enum ParsingState { kParsing, kInDOMContentLoaded, kFinishedParsing };
   void SetParsingState(ParsingState);
   bool Parsing() const { return parsing_state_ == kParsing; }
-  bool IsInDOMContentLoaded() const {
-    return parsing_state_ == kInDOMContentLoaded;
-  }
   bool HasFinishedParsing() const { return parsing_state_ == kFinishedParsing; }
 
   bool ShouldScheduleLayout() const;
@@ -1051,9 +1048,6 @@ class CORE_EXPORT Document : public ContainerNode,
   bool LoadEventStillNeeded() const {
     return load_event_progress_ == kLoadEventNotRun;
   }
-  bool ProcessingLoadEvent() const {
-    return load_event_progress_ == kLoadEventInProgress;
-  }
   bool LoadEventFinished() const {
     return load_event_progress_ >= kLoadEventCompleted;
   }
@@ -1164,7 +1158,6 @@ class CORE_EXPORT Document : public ContainerNode,
   }
   HTMLImportLoader* ImportLoader() const;
 
-  bool HaveImportsLoaded() const;
   void DidLoadAllImports();
 
   void AdjustFloatQuadsForScrollAndAbsoluteZoom(Vector<FloatQuad>&,
@@ -1374,6 +1367,10 @@ class CORE_EXPORT Document : public ContainerNode,
   void UpdateStyle();
   void NotifyLayoutTreeOfSubtreeChanges();
 
+  // ImplicitClose() actually does the work of closing the input stream.
+  void ImplicitClose();
+  bool ShouldComplete();
+
   void DetachParser();
 
   void BeginLifecycleUpdatesIfRenderingReady();
@@ -1439,6 +1436,8 @@ class CORE_EXPORT Document : public ContainerNode,
   void RunExecutionContextTask(std::unique_ptr<ExecutionContextTask>,
                                bool instrumenting);
 
+  bool HaveImportsLoaded() const;
+
   DocumentLifecycle lifecycle_;
 
   bool has_nodes_with_placeholder_style_;