Inspector: Removed unused references to InspectorAgent

Source/core/inspector/InspectorDOMDebuggerAgent.h

Index: Source/core/inspector/InspectorDOMDebuggerAgent.h
diff --git a/Source/core/inspector/InspectorDOMDebuggerAgent.h b/Source/core/inspector/InspectorDOMDebuggerAgent.h
index 404401c8f02758dcfd8b9ead53818359a721a7e1..4b4800e4cb209da2143529597b445ff0f698c7aa 100644
--- a/Source/core/inspector/InspectorDOMDebuggerAgent.h
+++ b/Source/core/inspector/InspectorDOMDebuggerAgent.h
@@ -44,7 +44,6 @@ namespace WebCore {
 class Document;
 class Element;
 class Event;
-class InspectorAgent;
 class InspectorDOMAgent;
 class InspectorDebuggerAgent;
 class InspectorFrontend;
@@ -58,7 +57,7 @@ typedef String ErrorString;
 class InspectorDOMDebuggerAgent : public InspectorBaseAgent<InspectorDOMDebuggerAgent>, public InspectorDebuggerAgent::Listener, public InspectorBackendDispatcher::DOMDebuggerCommandHandler {
     WTF_MAKE_NONCOPYABLE(InspectorDOMDebuggerAgent);
 public:
-    static PassOwnPtr<InspectorDOMDebuggerAgent> create(InstrumentingAgents*, InspectorCompositeState*, InspectorDOMAgent*, InspectorDebuggerAgent*, InspectorAgent*);
+    static PassOwnPtr<InspectorDOMDebuggerAgent> create(InstrumentingAgents*, InspectorCompositeState*, InspectorDOMAgent*, InspectorDebuggerAgent*);
 
     virtual ~InspectorDOMDebuggerAgent();
 
@@ -97,7 +96,7 @@ public:
     virtual void discardAgent();
 
 private:
-    InspectorDOMDebuggerAgent(InstrumentingAgents*, InspectorCompositeState*, InspectorDOMAgent*, InspectorDebuggerAgent*, InspectorAgent*);
+    InspectorDOMDebuggerAgent(InstrumentingAgents*, InspectorCompositeState*, InspectorDOMAgent*, InspectorDebuggerAgent*);
 
     void pauseOnNativeEventIfNeeded(bool isDOMEvent, const String& eventName, bool synchronous);