Explicit animation support

ui/gfx/compositor/compositor.gyp

Index: ui/gfx/compositor/compositor.gyp
diff --git a/ui/gfx/compositor/compositor.gyp b/ui/gfx/compositor/compositor.gyp
index d5e38b717cc5be34cd43db7c999aee139040bcc7..a9e3093e383ea57a8d6111d1c6c9ec3136fd4327 100644
--- a/ui/gfx/compositor/compositor.gyp
+++ b/ui/gfx/compositor/compositor.gyp
@@ -44,9 +44,15 @@
         'compositor_win.cc',
         'layer.cc',
         'layer.h',
+        'layer_animation_delegate.h',
+        'layer_animation_element.cc',
+        'layer_animation_element.h',
+        'layer_animation_manager.cc',
+        'layer_animation_manager.h',
+        'layer_animation_sequence.cc',
+        'layer_animation_sequence.h',
         'layer_animator.cc',
         'layer_animator.h',
-        'layer_animator_delegate.h',
       ],
       'conditions': [
         ['os_posix == 1 and OS != "mac"', {
@@ -94,6 +100,9 @@
         'compositor',
       ],
       'sources': [
+        'layer_animation_element_unittest.cc',
+        'layer_animation_sequence_unittest.cc',
+        'layer_animator_unittest.cc',
         'layer_unittest.cc',
         'run_all_unittests.cc',
         'test_compositor.cc',
@@ -101,10 +110,14 @@
         'test_compositor_host.h',
         'test_compositor_host_linux.cc',
         'test_compositor_host_win.cc',
+        'test_layer_animation_delegate.cc',
+        'test_layer_animation_delegate.h',
         'test_suite.cc',
         'test_suite.h',
         'test_texture.cc',
         'test_texture.h',
+        'test_utils.cc',
+        'test_utils.h',
         '<(SHARED_INTERMEDIATE_DIR)/ui/gfx/gfx_resources.rc',
         '<(SHARED_INTERMEDIATE_DIR)/ui/ui_resources/ui_resources.rc',
       ],