Revert of DevTools: remove dependency of most agents on InspectorPageAgent

Source/core/inspector/InspectorTracingAgent.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 InspectorTracingAgent_h
 #define InspectorTracingAgent_h
 
 #include "core/InspectorFrontend.h"
 #include "core/inspector/InspectorBaseAgent.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
+class InspectorPageAgent;
 class InspectorWorkerAgent;
-class LocalFrame;
 
 class InspectorTracingAgent final
     : public InspectorBaseAgent<InspectorTracingAgent, InspectorFrontend::Tracing>
     , public InspectorBackendDispatcher::TracingCommandHandler {
     WTF_MAKE_NONCOPYABLE(InspectorTracingAgent);
 public:
     class Client {
     public:
         virtual ~Client() { }
 
         virtual void enableTracing(const String& categoryFilter) { }
         virtual void disableTracing() { }
     };
 
-    static PassOwnPtrWillBeRawPtr<InspectorTracingAgent> create(LocalFrame* inspectedFrame, Client* client, InspectorWorkerAgent* workerAgent)
+    static PassOwnPtrWillBeRawPtr<InspectorTracingAgent> create(Client* client, InspectorWorkerAgent* workerAgent, InspectorPageAgent* pageAgent)
     {
-        return adoptPtrWillBeNoop(new InspectorTracingAgent(inspectedFrame, client, workerAgent));
+        return adoptPtrWillBeNoop(new InspectorTracingAgent(client, workerAgent, pageAgent));
     }
 
     DECLARE_VIRTUAL_TRACE();
 
     // Base agent methods.
     void restore() override;
     void disable(ErrorString*) override;
 
     // Protocol method implementations.
     virtual void start(ErrorString*, const String* categoryFilter, const String*, const double*, PassRefPtrWillBeRawPtr<StartCallback>) override;
     virtual void end(ErrorString*, PassRefPtrWillBeRawPtr<EndCallback>);
 
     // Methods for other agents to use.
     void setLayerTreeId(int);
 
 private:
-    InspectorTracingAgent(LocalFrame*, Client*, InspectorWorkerAgent*);
+    InspectorTracingAgent(Client*, InspectorWorkerAgent*, InspectorPageAgent*);
 
     void emitMetadataEvents();
     void resetSessionId();
     String sessionId();
 
-    RawPtrWillBeMember<LocalFrame> m_inspectedFrame;
     int m_layerTreeId;
     Client* m_client;
     RawPtrWillBeMember<InspectorWorkerAgent> m_workerAgent;
+    RawPtrWillBeMember<InspectorPageAgent> m_pageAgent;
 };
 
 } // namespace blink
 
 #endif // InspectorTracingAgent_h