NetInfo network quality extension: Add callbacks and Layout tests

third_party/WebKit/Source/core/testing/Internals.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 460 matching lines @@
 
   void setFocused(bool);
   void setInitialFocus(bool);
 
   bool ignoreLayoutWithPendingStylesheets(Document*);
 
   void setNetworkConnectionInfoOverride(bool,
                                         const String&,
                                         double downlink_max_mbps,
                                         ExceptionState&);
+  void setNetworkQualityInfoOverride(const String&,
+                                     unsigned long transport_rtt_msec,
+                                     double downlink_throughput_mbps,
+                                     ExceptionState&);
   void clearNetworkConnectionInfoOverride();
 
   unsigned countHitRegions(CanvasRenderingContext*);
 
   bool isInCanvasFontCache(Document*, const String&);
   unsigned canvasFontCacheMaxFonts();
 
   void setScrollChain(ScrollState*,
                       const HeapVector<Member<Element>>& elements,
                       ExceptionState&);
@@ skipping 73 matching lines @@
                            const String& marker_type,
                            unsigned index,
                            ExceptionState&);
   Member<InternalRuntimeFlags> runtime_flags_;
   Member<Document> document_;
 };
 
 }  // namespace blink
 
 #endif  // Internals_h