Fixing wrong extension ID in Activity Log entries.

Source/bindings/v8/V8DOMActivityLogger.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 19 matching lines @@
 
 #ifndef V8DOMActivityLogger_h
 #define V8DOMActivityLogger_h
 
 #include "wtf/PassOwnPtr.h"
 #include "wtf/text/WTFString.h"
 #include <v8.h>
 
 namespace WebCore {
 
+class KURL;
+
 class V8DOMActivityLogger {
 public:
     virtual ~V8DOMActivityLogger() { }
 
     virtual void logGetter(const String& apiName) { }
     virtual void logSetter(const String& apiName, const v8::Handle<v8::Value>& newValue) { }
     virtual void logSetter(const String& apiName, const v8::Handle<v8::Value>& newValue, const v8::Handle<v8::Value>& oldValue) { }
     virtual void logMethod(const String& apiName, int argc, const v8::Handle<v8::Value>* argv) { }
 
     // Associates a logger with the world identified by worldId (worlId may be 0
-    // identifying the main world).
-    static void setActivityLogger(int worldId, PassOwnPtr<V8DOMActivityLogger>);
-    static V8DOMActivityLogger* activityLogger(int worldId);
+    // identifying the main world) and extension ID. Extension ID is used to
+    // identify a logger for main world only (worldId == 0). If the world is not
+    // a main world, an extension ID is ignored.
+    //
+    // A render process may host multiple extensions when the browser hits a
+    // renderer process limit. Thus, within a single render there may be
+    // multiple main worlds (worldId == 0) that corresponds to different
+    // extensions. In order to find an appropriate logger for an extension's
+    // main world in such cases, we require an extension ID. Otherwise,
+    // extension activities may be logged under a wrong extension ID.
+    static void setActivityLogger(int worldId, const String&, PassOwnPtr<V8DOMActivityLogger>);
+    static V8DOMActivityLogger* activityLogger(int worldId, const String&);
+    static V8DOMActivityLogger* activityLogger(int worldId, const KURL&);
+
 };
 
 } // namespace WebCore
 
 #endif // V8DOMActivityLogger_h