DevTools: allow whitelist of timeline events to be pushed live although in bufferEvent mode.

Source/core/inspector/InspectorTimelineAgent.h

Index: Source/core/inspector/InspectorTimelineAgent.h
diff --git a/Source/core/inspector/InspectorTimelineAgent.h b/Source/core/inspector/InspectorTimelineAgent.h
index 39909d33ef8e20b07124e96e8be36e385dc82ece..a19553c9fe563836c2c39273031a87d505a21baf 100644
--- a/Source/core/inspector/InspectorTimelineAgent.h
+++ b/Source/core/inspector/InspectorTimelineAgent.h
@@ -42,6 +42,8 @@
 #include "platform/JSONValues.h"
 #include "platform/PlatformInstrumentation.h"
 #include "platform/geometry/LayoutRect.h"
+#include "wtf/HashMap.h"
+#include "wtf/HashSet.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/Vector.h"
 #include "wtf/WeakPtr.h"
@@ -139,7 +141,7 @@ public:
 
     virtual void enable(ErrorString*) OVERRIDE;
     virtual void disable(ErrorString*) OVERRIDE;
-    virtual void start(ErrorString*, const int* maxCallStackDepth, const bool* bufferEvents, const bool* includeCounters, const bool* includeGPUEvents) OVERRIDE;
+    virtual void start(ErrorString*, const int* maxCallStackDepth, const bool* bufferEvents, const String* liveEvents, const bool* includeCounters, const bool* includeGPUEvents) OVERRIDE;
     virtual void stop(ErrorString*, RefPtr<TypeBuilder::Array<TypeBuilder::Timeline::TimelineEvent> >& events) OVERRIDE;
 
     void setLayerTreeId(int layerTreeId) { m_layerTreeId = layerTreeId; }
@@ -301,6 +303,7 @@ private:
     bool isStarted();
     void innerStart();
     void innerStop(bool fromConsole);
+    void setLiveEvents(const String&);
 
     InspectorPageAgent* m_pageAgent;
     InspectorDOMAgent* m_domAgent;
@@ -336,6 +339,7 @@ private:
     typedef HashMap<ThreadIdentifier, TimelineThreadState> ThreadStateMap;
     ThreadStateMap m_threadStates;
     bool m_mayEmitFirstPaint;
+    HashSet<String> m_liveEvents;
 };
 
 } // namespace WebCore