Fix black background when locking with fullscreen window:

ui/ui.gyp

Index: ui/ui.gyp
diff --git a/ui/ui.gyp b/ui/ui.gyp
index 7d95ac69a7f2859e53659147e096aa7b5b5c2a20..a399708870d72a7d936075f72a370c42bcd64b81 100644
--- a/ui/ui.gyp
+++ b/ui/ui.gyp
@@ -61,6 +61,8 @@
         'base/animation/animation_container.h',
         'base/animation/animation_container_element.h',
         'base/animation/animation_container_observer.h',
+        'base/animation/animation_container_test_helper.cc',

[Daniel Erat, 2012/12/10 23:56:12]

Got a compile error while trying to build Chrome with this patch applied:

In file included from ./base/callback_internal.h:15:0,
                 from ./base/callback.h:14,
                 from ./base/bind_helpers.h:151,
                 from ./base/bind_internal.h:13,
                 from ./base/bind.h:13,
                 from ./base/timer.h:53,
                 from ./ui/base/animation/animation_container.h:12,
                 from ./ui/base/animation/animation_container_test_helper.h:10,
                 from ui/base/animation/animation_container_test_helper.cc:5:
./base/memory/scoped_ptr.h: In instantiation of 'scoped_ptr<C>::~scoped_ptr()
[with C = base::test::ScopedTimeController]':
./ui/base/animation/animation_container_test_helper.h:23:43:   required from
here
./base/memory/scoped_ptr.h:163:5: error: deleting object of polymorphic class
type 'base::test::ScopedTimeController' which has non-virtual destructor might
cause undefined behaviour [-Werror=delete-non-virtual-dtor]

This file should probably only be built for tests, right?  If it's
testing-specific, including it in the main Chrome build doesn't make sense to
me.

[Denis Kuznetsov (DE-MUC), 2012/12/11 13:27:57]

moved to the test_support_base section (missed that first time)

+        'base/animation/animation_container_test_helper.h',
         'base/animation/animation_delegate.h',
         'base/animation/linear_animation.cc',
         'base/animation/linear_animation.h',