Animated scroll shouldn't consume unhandled scrolls for OOPIFs.

third_party/WebKit/Source/platform/testing/WebLayerTreeViewImplForTesting.cpp

 // Copyright 2013 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 "platform/testing/WebLayerTreeViewImplForTesting.h"
 
 #include "base/threading/thread_task_runner_handle.h"
 #include "cc/animation/animation_host.h"
 #include "cc/animation/animation_timeline.h"
 #include "cc/blink/web_layer_impl.h"
@@ skipping 185 matching lines @@
 
 void WebLayerTreeViewImplForTesting::SetHaveScrollEventHandlers(
     bool have_eent_handlers) {
   layer_tree_host_->SetHaveScrollEventHandlers(have_eent_handlers);
 }
 
 bool WebLayerTreeViewImplForTesting::HaveScrollEventHandlers() const {
   return layer_tree_host_->have_scroll_event_handlers();
 }
 
+bool WebLayerTreeViewImplForTesting::IsForSubframe() {
+  return false;
+}
+
 }  // namespace blink