Rename ErrorCallback into LogSystem, provide a proper console API

test/JsEngine.cpp

 /*
  * This file is part of Adblock Plus <http://adblockplus.org/>,
  * Copyright (C) 2006-2013 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 49 matching lines @@
 
   value = jsEngine->NewObject();
   ASSERT_TRUE(value->IsObject());
   ASSERT_EQ(0u, value->GetOwnPropertyNames().size());
 }
 
 TEST(NewJsEngineTest, CallbackGetSet)
 {
   AdblockPlus::JsEnginePtr jsEngine(AdblockPlus::JsEngine::New());
 
-  ASSERT_TRUE(jsEngine->GetErrorCallback());
-  ASSERT_ANY_THROW(jsEngine->SetErrorCallback(AdblockPlus::ErrorCallbackPtr()));
-  AdblockPlus::ErrorCallbackPtr errorCallback(new AdblockPlus::DefaultErrorCallback());
-  jsEngine->SetErrorCallback(errorCallback);
-  ASSERT_EQ(errorCallback, jsEngine->GetErrorCallback());
+  ASSERT_TRUE(jsEngine->GetLogSystem());
+  ASSERT_ANY_THROW(jsEngine->SetLogSystem(AdblockPlus::LogSystemPtr()));
+  AdblockPlus::LogSystemPtr logSystem(new AdblockPlus::DefaultLogSystem());
+  jsEngine->SetLogSystem(logSystem);
+  ASSERT_EQ(logSystem, jsEngine->GetLogSystem());
 
   ASSERT_TRUE(jsEngine->GetFileSystem());
   ASSERT_ANY_THROW(jsEngine->SetFileSystem(AdblockPlus::FileSystemPtr()));
   AdblockPlus::FileSystemPtr fileSystem(new AdblockPlus::DefaultFileSystem());
   jsEngine->SetFileSystem(fileSystem);
   ASSERT_EQ(fileSystem, jsEngine->GetFileSystem());
 
   ASSERT_TRUE(jsEngine->GetWebRequest());
   ASSERT_ANY_THROW(jsEngine->SetWebRequest(AdblockPlus::WebRequestPtr()));
   AdblockPlus::WebRequestPtr webRequest(new AdblockPlus::DefaultWebRequest());
   jsEngine->SetWebRequest(webRequest);
   ASSERT_EQ(webRequest, jsEngine->GetWebRequest());
 }