aura: Set up the mock compositor to get gfx_unittests green on linux.

ui/ui_unittests.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'ui_test_support',
       'dependencies': [
         '../base/base.gyp:base',
@@ skipping 162 matching lines @@
         }],
         ['use_aura==1 and OS!="win"', {
           'sources!': [
             # aura does not yet have clipboard support. http://crbug.com/97845
             'base/clipboard/clipboard_unittest.cc',
           ],
         }],
         ['use_aura==1', {
           'dependencies': [
             'aura/aura.gyp:aura',
+            'gfx/compositor/compositor.gyp:compositor',

[jonathan.backer, 2011/10/25 20:13:53]

It's only necessary to pull in compositor if you're going to run with a real
compositor. If it's always mock, you only need the compositor_test_support.

[sadrul, 2011/10/25 20:28:42]

That's what I thought too, but without this, I get linking errors:

/usr/bin/ld:
obj/ui/gfx/compositor/compositor_test_support.a(obj/ui/gfx/compositor/compositor_test_support.layer.o):
in function
ui::Layer::SetAnimation(ui::Animation*):../../ui/gfx/compositor/layer.cc:134:
error: undefined reference to
'ui::LayerAnimationManager::LayerAnimationManager(ui::Layer*)'
/usr/bin/ld:
obj/ui/gfx/compositor/compositor_test_support.a(obj/ui/gfx/compositor/compositor_test_support.layer.o):
in function
ui::Layer::SetAnimation(ui::Animation*):../../ui/gfx/compositor/layer.cc:136:
error: undefined reference to
'ui::LayerAnimationManager::SetAnimation(ui::Animation*)'
/

etc,

+            'gfx/compositor/compositor.gyp:compositor_test_support',
           ],
         }],
       ],
     },
   ],
 }