Remove Page dependency from NetworkStateNotifier

third_party/WebKit/Source/core/frame/LocalDOMWindow.h

Index: third_party/WebKit/Source/core/frame/LocalDOMWindow.h
diff --git a/third_party/WebKit/Source/core/frame/LocalDOMWindow.h b/third_party/WebKit/Source/core/frame/LocalDOMWindow.h
index 49e771803f1d8544ef6b2f71a9e2fdcebfcc8d70..3510808d41ed26c9a8b3d122bdec396aeca02e90 100644
--- a/third_party/WebKit/Source/core/frame/LocalDOMWindow.h
+++ b/third_party/WebKit/Source/core/frame/LocalDOMWindow.h
@@ -325,6 +325,8 @@ class CORE_EXPORT LocalDOMWindow final : public DOMWindow,
                            Document* source) override;
 
  private:
+  class NetworkStateObserver;
+
   // Intentionally private to prevent redundant checks when the type is
   // already LocalDOMWindow.
   bool isLocalDOMWindow() const override { return true; }
@@ -357,6 +359,7 @@ class CORE_EXPORT LocalDOMWindow final : public DOMWindow,
   mutable Member<StyleMedia> m_media;
   mutable TraceWrapperMember<CustomElementRegistry> m_customElements;
   Member<External> m_external;
+  mutable Member<NetworkStateObserver> m_networkStateObserver;
 
   String m_status;
   String m_defaultStatus;