Enable audio/video tag in content_shell

base/base_paths_posix.cc

Index: base/base_paths_posix.cc
diff --git a/base/base_paths_posix.cc b/base/base_paths_posix.cc
index a1c45a03df1c470bd15a9af31044ac4241780bc4..ce154688146e80c8ee72a134a4cc5502f2c05f49 100644
--- a/base/base_paths_posix.cc
+++ b/base/base_paths_posix.cc
@@ -99,12 +99,18 @@ bool PathProviderPosix(int key, FilePath* result) {
                   << "Try running from your chromium/src directory.";
       return false;
     }
-    case base::DIR_CACHE:
+    case base::DIR_CACHE: {
       scoped_ptr<base::Environment> env(base::Environment::Create());
       FilePath cache_dir(base::nix::GetXDGDirectory(env.get(), "XDG_CACHE_HOME",
                                                     ".cache"));
       *result = cache_dir;
       return true;
+    }
+    case base::DIR_MEDIA_LIBS: {
+      if (!PathService::Get(base::DIR_MODULE, result))
+        return false;
+      return true;
+    }
   }
   return false;
 }