[NetInfo] Add Blink support for connection.change, connection.downlinkMax, and wimax

Source/modules/netinfo/NetworkInformation.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NetworkInformation_h
 #define NetworkInformation_h
 
 #include "core/dom/ActiveDOMObject.h"
 #include "core/events/EventTarget.h"
 #include "core/page/NetworkStateNotifier.h"
 #include "public/platform/WebConnectionType.h"
 
 namespace blink {
 
 class ExecutionContext;
 
 class NetworkInformation final
     : public RefCountedGarbageCollectedEventTargetWithInlineData<NetworkInformation>
     , public ActiveDOMObject
     , public NetworkStateNotifier::NetworkStateObserver {
     REFCOUNTED_GARBAGE_COLLECTED_EVENT_TARGET(NetworkInformation);
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(NetworkInformation);
     DEFINE_WRAPPERTYPEINFO();
 public:
     static NetworkInformation* create(ExecutionContext*);
     ~NetworkInformation() override;
 
     String type() const;
+    double downlinkMax() const;
 
-    void connectionTypeChange(WebConnectionType) override;
+    // NetworkStateObserver overrides.
+    void connectionChange(WebConnectionType, double) override;

[adamk, 2015/08/28 00:55:31]

Same bit here about naming

[jkarlin, 2015/09/02 17:37:07]

Done.

 
     // EventTarget overrides.
     const AtomicString& interfaceName() const override;
     ExecutionContext* executionContext() const override;
     bool addEventListener(const AtomicString& eventType, PassRefPtrWillBeRawPtr<EventListener>, bool useCapture = false) override;
     bool removeEventListener(const AtomicString& eventType, PassRefPtrWillBeRawPtr<EventListener>, bool useCapture = false) override;
     void removeAllEventListeners() override;
 
     // ActiveDOMObject overrides.
     bool hasPendingActivity() const override;
     void stop() override;
 
     DECLARE_VIRTUAL_TRACE();
 
-    DEFINE_ATTRIBUTE_EVENT_LISTENER(typechange);
+    DEFINE_ATTRIBUTE_EVENT_LISTENER(change);
+    DEFINE_ATTRIBUTE_EVENT_LISTENER(typechange); // Deprecated
 
 private:
     explicit NetworkInformation(ExecutionContext*);
     void startObserving();
     void stopObserving();
 
     // Touched only on context thread.
     WebConnectionType m_type;
 
+    // Touched only on context thread.
+    double m_downlinkMax;
+
     // Whether this object is listening for events from NetworkStateNotifier.
     bool m_observing;
 
     // Whether ActiveDOMObject::stop has been called.
     bool m_contextStopped;
 };
 
 } // namespace blink
 
 #endif // NetworkInformation_h