Fix python scripts src/chrome_frame/tools/test/page_cycler/cf_cycler.py

Fix python scripts src/chrome_frame/tools/test/page_cycler/cf_cycler.py

Make sure that:
- shebang is only present for executable files
- __main__ is only present for executable files
- file's executable bit is coherent

Also fix EOF LF to be only one.

* Doing it separately since the CQ cannot process it.

TBR=robertshield@chromium.org
BUG=105108
TEST=

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=111399

[M-A Ruel, 2011-11-23 20:08:27]

Extracted from http://codereview.chromium.org/8665013/. It needs to be committed
manually since it is CRLF.

[robertshield, 2011-11-23 20:12:26]

On 2011/11/23 20:08:27, Marc-Antoine Ruel wrote:
> Extracted from http://codereview.chromium.org/8665013/. It needs to be
committed
> manually since it is CRLF.

LGTM