Bug 429546 - [Browsers] org.eclipse.ui.internal.browser.ExternalBrowserInstance.openUrl() which also has "-ingognito" does a toLower on URL string;

Partially revert commit 301ecd46d78e8d0a13f2161ba93d6812edb94c9e as
WebBrowserUtil#createParameterArray() returns an array not a String.
Restore the original tests since WebBrowserUtil#createParameterString()
has been restored, and add new tests for #createParameterArray()

Change-Id: I26996cdcde9b57138cc53edb47a7cc52fd25519c
1 file changed