aura: Make the Linux version of IconLoader not require GTK+.
This change makes it use webkit_glue::ImageDecoder instead
of gdk-pixbuf and hides various GTK+ theme-related code
behind TOOLKIT_USES_GTK ifdefs. Chrome OS is currently
loading its own icons from resources (see r86936 and
http://crosbug.com/129) instead of using IconLoader and
IconManager, so this only removes NOTIMPLEMENTED()s on
non-Chrome-OS Linux Aura builds (along with simplifying the
GTK+ version of the code).
BUG=99494
TEST=manual: download icons are still visible on a gtk+ build
Review URL: http://codereview.chromium.org/8501030
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@109527 0039d316-1c4b-4281-b951-d872f2087c98
CrOS-Libchrome-Original-Commit: 3ce52b7367e007940d7ab34ae8eae1df236c59df
2 files changed