Always call LayerImpl::SetDebugInfo in debug builds.

cc/blink/web_layer_impl.cc

 // Copyright 2014 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/blink/web_layer_impl.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 49 matching lines @@
 WebLayerImpl::WebLayerImpl(scoped_refptr<Layer> layer)
     : layer_(layer), contents_opaque_is_fixed_(false) {
   web_layer_client_ = nullptr;
   layer_->SetLayerClient(this);
 }
 
 WebLayerImpl::~WebLayerImpl() {
   if (animation_delegate_adapter_.get())
     layer_->set_layer_animation_delegate(nullptr);
   web_layer_client_ = nullptr;
+  layer_->SetLayerClient(nullptr);

[enne (OOO), 2015/10/21 00:04:12]

Oh! Kind of surprised this managed to not be here before.

 }
 
 // static
 void WebLayerImpl::SetLayerSettings(const cc::LayerSettings& settings) {
   g_layer_settings.Get() = settings;
 }
 
 // static
 const cc::LayerSettings& WebLayerImpl::LayerSettings() {
   return g_layer_settings.Get();
@@ skipping 458 matching lines @@
 
 Layer* WebLayerImpl::layer() const {
   return layer_.get();
 }
 
 void WebLayerImpl::SetContentsOpaqueIsFixed(bool fixed) {
   contents_opaque_is_fixed_ = fixed;
 }
 
 }  // namespace cc_blink