CC: Change default fill mode for compositor animations with delay

cc/animation/animation.cc

 // Copyright 2012 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 "cc/animation/animation.h"
 
 #include <cmath>
 
 #include "base/debug/trace_event.h"
 #include "base/strings/string_util.h"
@@ skipping 49 matching lines @@
                      TargetProperty target_property)
     : curve_(curve.Pass()),
       id_(animation_id),
       group_(group_id),
       target_property_(target_property),
       run_state_(WaitingForTargetAvailability),
       iterations_(1),
       iteration_start_(0),
       direction_(Normal),
       playback_rate_(1),
-      fill_mode_(FillModeNone),
+      fill_mode_(FillModeBoth),
       needs_synchronized_start_time_(false),
       received_finished_event_(false),
       suspended_(false),
       is_controlling_instance_(false),
       is_impl_only_(false),
       affects_active_observers_(true),
       affects_pending_observers_(true) {
 }
 
 Animation::~Animation() {
@@ skipping 194 matching lines @@
   // the main thread.
   if (run_state_ == Animation::Paused ||
       other->run_state_ == Animation::Paused) {
     other->run_state_ = run_state_;
     other->pause_time_ = pause_time_;
     other->total_paused_time_ = total_paused_time_;
   }
 }
 
 }  // namespace cc