Add media/base to the build.

r8805 made it compile.
Review URL: http://codereview.chromium.org/19422

git-svn-id: http://src.chromium.org/svn/trunk/src/build@8842 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

SConscript.main

@@ -548,7 +548,6 @@ if ARGUMENTS.get('SHARED') == '1':
   linux_env.FilterOut(
       BUILD_SCONSCRIPTS = [
           '$CHROME_DIR/chrome.scons',
-          '$MEDIA_DIR/media.scons',
       ]
   )