Simplify DeferredMediaBrowserTest.

Android-specific code is dead code in browser tests.

Bug: 783582
Change-Id: I87652e098f63143afa2d0d0e3de6b3064b578142
Reviewed-on: https://chromium-review.googlesource.com/770134
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#516574}
1 file changed