[Chromecast] End to end mpeg2ts parser test
Use local file for all MediaSourceTest
To run the this test on chromecast,
1. link cast_shell.pak to /chrome/content_shell.pak
2. set env CR_SOURCE_ROOT to a writable dir
3. put required test file to $CR_SOURCE_ROOT/media/test/data
4. run the test with gtest_filter set to correct test case
Related CL https://codereview.chromium.org/
1214493002/
BUG=internal b/
17491447
Review URL: https://codereview.chromium.org/
1214213003
Cr-Commit-Position: refs/heads/master@{#337560}