update baseline of trim_indentation test
Not sure what this test was doing before, but it seems to be correct now.
In particular, the "expected" layout exactly matches the "actual" layout.

I added another div to the "expectation" so I could visually see the expected/actual line up (previously they did not before "expected: " pushed the text to the right)

BUG=

Review URL: https://chromiumcodereview.appspot.com//12937014