unable to play local html5 video in webview
<p>unable to play local html5 video in <code>webview</code>,</p>

<p>below are the <code>logcat</code>.</p>

<pre><code>04-02 10:29:33.656: E/Trace(629): error opening trace file: No such file or directory (2)
04-02 10:29:34.356: D/gralloc_goldfish(629): Emulator without GPU emulation detected.
04-02 10:30:11.517: E/libEGL(629): call to OpenGL ES API with no current context (logged once per thread)
04-02 10:30:11.615: E/MediaPlayer(629): error (1, -2147483648)
04-02 10:30:11.635: E/MediaPlayer(629): Error (1,-2147483648)
04-02 10:30:13.836: E/libEGL(629): call to OpenGL ES API with no current context (logged once per thread)
04-02 10:30:13.886: E/MediaPlayer(629): error (1, -2147483648)
04-02 10:30:13.886: E/MediaPlayer(629): Error (1,-2147483648)
04-02 10:30:19.175: D/dalvikvm(629): GC_CONCURRENT freed 243K, 9% free 7410K/8135K, paused 16ms+5ms, total 117ms
04-02 10:34:29.925: E/Trace(714): error opening trace file: No such file or directory (2)
04-02 10:34:31.195: D/gralloc_goldfish(714): Emulator without GPU emulation detected.
04-02 10:34:41.056: E/libEGL(714): call to OpenGL ES API with no current context (logged once per thread)
04-02 10:34:41.105: E/MediaPlayer(714): error (1, -2147483648)
04-02 10:34:41.105: E/MediaPlayer(714): Error (1,-2147483648)
</code></pre>
