build browser application for 2.3 to 3.0 for android
<p>As the source code of android3.0 of browser is not available from android. I want to run the browser application 2.3 on 3.0 emulator. But i am facing the problem in building the application as due to some non public API and also not availability of some classes i.e. available in 2.3 but not in 3.0.</p>

<p>Some how i manage to use non public API of android 3.0 but the problems are some classes like com.android.common.search and all. Should i include the android.jar of 2.3.</p>

<p>I want some link of tutorial or blog which illustrate the porting of the application from lower version of OS to upper version in android</p>
