DevTools: implement console.timeline/timelineEnd.

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 58397d3bbe4a0367a9e8dcc32cbee55c749e87d9..b175ddc8c1956d6b4a8541783023f21e0ace9ad2 100644
--- a/Source/core/inspector/InspectorTimelineAgent.h
+++ b/Source/core/inspector/InspectorTimelineAgent.h
@@ -70,6 +70,7 @@ class ResourceResponse;
 class ScriptArguments;
 class ScriptCallStack;
 class ScriptExecutionContext;
+class ScriptState;
 class TimelineTraceEventProcessor;
 class WebSocketHandshakeRequest;
 class WebSocketHandshakeResponse;
@@ -171,12 +172,14 @@ public:
     bool willEvaluateScript(Frame*, const String&, int);
     void didEvaluateScript();
 
-    void consoleTimeStamp(ScriptExecutionContext*, PassRefPtr<ScriptArguments>);
+    void consoleTimeStamp(ScriptExecutionContext*, const String& title);
     void domContentLoadedEventFired(Frame*);
     void loadEventFired(Frame*);
 
-    void startConsoleTiming(ScriptExecutionContext*, const String&);
-    void stopConsoleTiming(ScriptExecutionContext*, const String&, PassRefPtr<ScriptCallStack>);
+    void consoleTime(ScriptExecutionContext*, const String&);
+    void consoleTimeEnd(ScriptExecutionContext*, const String&, ScriptState*);
+    void consoleTimeline(ScriptExecutionContext*, const String& title, ScriptState*);
+    void consoleTimelineEnd(ScriptExecutionContext*, const String& title, ScriptState*);
 
     void didScheduleResourceRequest(Document*, const String& url);
     void willSendRequest(unsigned long, DocumentLoader*, const ResourceRequest&, const ResourceResponse&, const FetchInitiatorInfo&);
@@ -255,6 +258,9 @@ private:
     double timestamp();
     Page* page();
 
+    void innerStart(bool fromConsole);
+    void innerStop(bool fromConsole);
+
     InspectorPageAgent* m_pageAgent;
     InspectorMemoryAgent* m_memoryAgent;
     InspectorDOMAgent* m_domAgent;
@@ -286,6 +292,8 @@ private:
     RefPtr<TimelineTraceEventProcessor> m_traceEventProcessor;
     unsigned m_styleRecalcElementCounter;
     int m_layerTreeId;
+    bool m_isStarted;
+    Vector<String> m_consoleTimelines;
 };
 
 } // namespace WebCore