Fix template angle bracket syntax in platform

Source/platform/mediastream/MediaStreamSource.h

Index: Source/platform/mediastream/MediaStreamSource.h
diff --git a/Source/platform/mediastream/MediaStreamSource.h b/Source/platform/mediastream/MediaStreamSource.h
index 3615dafaa25e8324bd44a0d6b9fbf40a48be1f37..d1f0d02b6a25b5e58b940c9c954e58d259206d3a 100644
--- a/Source/platform/mediastream/MediaStreamSource.h
+++ b/Source/platform/mediastream/MediaStreamSource.h
@@ -94,7 +94,7 @@ public:
     bool requiresAudioConsumer() const { return m_requiresConsumer; }
     void addAudioConsumer(AudioDestinationConsumer*);
     bool removeAudioConsumer(AudioDestinationConsumer*);
-    const HeapHashSet<Member<AudioDestinationConsumer> >& audioConsumers() { return m_audioConsumers; }
+    const HeapHashSet<Member<AudioDestinationConsumer>>& audioConsumers() { return m_audioConsumers; }
 
 private:
     MediaStreamSource(const String& id, Type, const String& name, bool remote, bool readonly, ReadyState, bool requiresConsumer);
@@ -108,12 +108,12 @@ private:
     bool m_requiresConsumer;
     Vector<Observer*> m_observers;
     Mutex m_audioConsumersLock;
-    PersistentHeapHashSet<Member<AudioDestinationConsumer> > m_audioConsumers;
+    PersistentHeapHashSet<Member<AudioDestinationConsumer>> m_audioConsumers;
     OwnPtr<ExtraData> m_extraData;
     WebMediaConstraints m_constraints;
 };
 
-typedef Vector<RefPtr<MediaStreamSource> > MediaStreamSourceVector;
+typedef Vector<RefPtr<MediaStreamSource>> MediaStreamSourceVector;
 
 } // namespace blink