Updated to Chrome 45 (2454) moved from SVN to git.

core/animation/DocumentAnimation.idl

Index: core/animation/DocumentAnimation.idl
diff --git a/core/animation/DocumentAnimation.idl b/core/animation/DocumentAnimation.idl
index d2c2861c8b1befb6dc4fe6112c016f1ab8df0b5f..7e02888d405107dc9279d63c25bf539383a90d1f 100644
--- a/core/animation/DocumentAnimation.idl
+++ b/core/animation/DocumentAnimation.idl
@@ -2,8 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+// https://w3c.github.io/web-animations/#extensions-to-the-document-interface
+
 [
     RuntimeEnabled=WebAnimationsAPI,
 ] partial interface Document {
+    // TODO(dstockwell): This should be a DocumentTimeline.
     readonly attribute AnimationTimeline timeline;
 };