plugins: move NativeLibrary into base.

plugins: move NativeLibrary into base.

NativeLibrary is used by some plugin code under chrome/.
Rather than including webkit/glue there, this relocation is the smallest
logical bite to take.  :\

[Evan Martin, 2009-04-20 23:20:45]

jam: review, rest FYI

This is in response to a review comment of yours on the plugin code, that it
shouldn't need to include webkit/glue.

[jam, 2009-04-21 00:26:53]

lgtm, thanks for doing this

http://codereview.chromium.org/87012/diff/25/1014
File base/native_library.h (right):

http://codereview.chromium.org/87012/diff/25/1014#newcode9
Line 9: // a loadable module.  It's used for holding plugin handles.
no need to mention plugins here

http://codereview.chromium.org/87012/diff/25/1015
File base/native_library_linux.cc (right):

http://codereview.chromium.org/87012/diff/25/1015#newcode14
Line 14: // static
nit: i know some places of the code do it often, but I still think it's
redundant to put "// static" infront of methods.  why not "// private" or "//
public"?!