Structural improvements for request handling (issue #1044)

- Add new CefRequestContext and CefRequestContextHandler classes.
- Add CefRequestContext argument to CefBrowserHost static factory methods.
- Move GetCookieManager from CefRequestHandler to CefRequestContextHandler.
- Use BrowserContext as the root proxy object for network requests.
- Move accessors for CefBrowserMainParts members from CefContext to CefContentBrowserClient.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@1424 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

tests/cefclient/cefclient_win.cpp

@@ -329,7 +329,7 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam,
 
       // Creat the new child browser window
       CefBrowserHost::CreateBrowser(info, g_handler.get(),
-          g_handler->GetStartupURL(), settings);
+          g_handler->GetStartupURL(), settings, NULL);
 
       return 0;
     }