Add missing NaCl PPAPI test components to Chrome repo.

Add missing NaCl PPAPI test components to Chrome repo.

This CL does not affect Chrome yet.  It is the first part of a multi CL dance between NaCl and Chrome repos.  It only adds missing files which a later CL to NaCl (followed by a later NaCl DEPS bump in chrome) will change the location from which certain files are built.  Eventually a TRY will verify that components can still be compiled and tested.

Adds examples.html & nacl.scons removing references to SRCP (non PPAPI) tests.
Adds earth test.
Adds srpcgen tool which is called from the Chrome repo.
Adds trusted and untrusted PPAPI build files.

BUG= http://code.google.com/p/chromium/issues/detail?id=96782
TEST= none (no effect)
R= bradnelson@chromium.org
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=101561

[bradn, 2011-09-16 18:27:56]

LGTM, did you decide against dropping the underlay?

[noelallen_use_chromium, 2011-09-16 18:41:11]

I ran into errors with getting rid of the scons and gyp files (in the
gyp case an exception because I'm "above" the native_client
directory), so I unwound that part.  I will try again, but I'm just
doing this in smaller steps.

On Fri, Sep 16, 2011 at 11:27 AM,  <bradnelson@google.com> wrote:
> LGTM, did you decide against dropping the underlay?
>
>
> http://codereview.chromium.org/7920012/
>

[bradn, 2011-09-16 18:42:17]

K, sounds wise.


On Fri, Sep 16, 2011 at 11:40 AM, Noel Allen <noelallen@google.com> wrote:

> I ran into errors with getting rid of the scons and gyp files (in the
> gyp case an exception because I'm "above" the native_client
> directory), so I unwound that part.  I will try again, but I'm just
> doing this in smaller steps.
>
> On Fri, Sep 16, 2011 at 11:27 AM,  <bradnelson@google.com> wrote:
> > LGTM, did you decide against dropping the underlay?
> >
> >
> > http://codereview.chromium.org/7920012/
> >
>

[sehr (please use chromium), 2011-09-16 18:56:42]

LGTM.

On 2011/09/16 18:42:17, bradn wrote:
> K, sounds wise.
> 
> 
> On Fri, Sep 16, 2011 at 11:40 AM, Noel Allen <mailto:noelallen@google.com>
wrote:
> 
> > I ran into errors with getting rid of the scons and gyp files (in the
> > gyp case an exception because I'm "above" the native_client
> > directory), so I unwound that part.  I will try again, but I'm just
> > doing this in smaller steps.
> >
> > On Fri, Sep 16, 2011 at 11:27 AM,  <mailto:bradnelson@google.com> wrote:
> > > LGTM, did you decide against dropping the underlay?
> > >
> > >
> > > http://codereview.chromium.org/7920012/
> > >
> >