Remove duplicated headers

Remove duplicated headers from the implementation file that is included in the corresponding primary header file as well.

As an example if MyClass.h includes "Dependency.h" than MyClass.cpp no longer needs to include "Dependency.h".


BUG=317231
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=161696

[lgombos, 2013-11-10 05:37:01]

I have a script that does the work. 

I plan to upload CLs for each directory separately to make it easier to
review/land.

[eseidel, 2013-11-10 09:02:42]

The idea is OK.  It can be hard to make this kind of change as sometimes Mac vs.
Linux vs. Win vs. Debug vs. Release all need slightly different header includes,
so we often end up with the superset++.

[eseidel, 2013-11-10 09:03:06]

lgtm

If it builds everywhere.

[commit-bot: I haz the power, 2013-11-10 09:03:16]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/l.gombos@samsung.com/58943003/1

[eseidel, 2013-11-10 09:04:11]

There was also (a while ago?) an "include what you use" effort.

It's much better to remove includes from .h files and add them to the necesary
.cpps for build time (when possible of course).

[commit-bot: I haz the power, 2013-11-10 10:45:30]

Change committed as 161696