Block access to java.lang.Object.getClass in injected Java objects

Prevents invocations of java.lang.Object.getClass from JavaScript code via an
injected Java object.

On an invocation attempt, logs an EventLog message, and sends a message to
WebChromeClient.onConsoleMessage callback.

Bug: 13694467
Change-Id: I9eab38aac48c6ae4ad49dd06c67c8ccf0af17ea7
4 files changed