Refactor: Move gfx/compositor* to gfx/compositor/

compositor_gl.cc (in gfx) depends on app_base (for gl_bindings), but app_base depends on gfx. This gets rid of the cyclic dependency. It is part of the larger effort to move app/gfx/gl to ui/gfx/gl.

BUG=none
TEST=trybots

Review URL: http://codereview.chromium.org/6718034

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@79127 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/ui/gfx/compositor/compositor.cc b/ui/gfx/compositor/compositor.cc
new file mode 100644
index 0000000..e5d5ce64
--- /dev/null
+++ b/ui/gfx/compositor/compositor.cc
@@ -0,0 +1,14 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ui/gfx/compositor/compositor.h"
+
+namespace ui {
+
+// static
+Compositor* Compositor::Create(gfx::AcceleratedWidget widget) {
+  return NULL;
+}
+
+}  // namespace ui