Clean up forward declarations in Source/core/inspector

Source/core/inspector/InspectorConsoleAgent.h

Index: Source/core/inspector/InspectorConsoleAgent.h
diff --git a/Source/core/inspector/InspectorConsoleAgent.h b/Source/core/inspector/InspectorConsoleAgent.h
index cea43950e59540c39fdd1062f89e843059c99e4e..c1ed427c94e929e44de19147b717635afad2f99c 100644
--- a/Source/core/inspector/InspectorConsoleAgent.h
+++ b/Source/core/inspector/InspectorConsoleAgent.h
@@ -43,21 +43,12 @@ namespace blink {
 class ConsoleMessage;
 class ConsoleMessageStorage;
 class DocumentLoader;
-class LocalDOMWindow;
 class LocalFrame;
-class InspectorConsoleMessage;
 class InspectorFrontend;
 class InjectedScriptManager;
 class InspectorTimelineAgent;
-class InstrumentingAgents;
-class ResourceError;
-class ResourceLoader;
-class ResourceResponse;
-class ScriptArguments;
-class ScriptCallStack;
 class ScriptProfile;
 class ThreadableLoaderClient;
-class WorkerGlobalScopeProxy;
 class XMLHttpRequest;
 
 typedef String ErrorString;