Fix crashes when NinePatchLayer doesn't have a resource.

cc/layers/nine_patch_layer.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/layers/nine_patch_layer.h"
 
 #include "cc/layers/nine_patch_layer_impl.h"
 #include "cc/resources/prioritized_resource.h"
 #include "cc/resources/resource_update.h"
 #include "cc/resources/resource_update_queue.h"
@@ skipping 54 matching lines @@
     gfx::Rect content_rect(0, 0, bitmap_.width(), bitmap_.height());
     ResourceUpdate upload = ResourceUpdate::Create(resource_->texture(),
                                                    &bitmap_,
                                                    content_rect,
                                                    content_rect,
                                                    gfx::Vector2d());
     queue->AppendFullUpload(upload);
     bitmap_dirty_ = false;
     updated = true;
   }
+
+  SetNeedsPushProperties();

[danakj, 2013/08/20 16:48:57]

Thanks, but I'd prefer if this matched the way similar layers do it.
https://code.google.com/p/chromium/codesearch#chromium/src/cc/layers/scrollba...

Inside PushPropertiesTo with a comment and a crbug, if you don't mind?

[ccameron, 2013/08/20 18:14:01]

Sure -- done! I find that a bit terrifying, but it's better to be consistent
than have a zoo of options.
Filed & added (from aelias' comment it had sounded like one may exist).

   return updated;
 }
 
 void NinePatchLayer::CreateUpdaterIfNeeded() {
   if (updater_.get())
     return;
 
   updater_ = ImageLayerUpdater::Create();
 }
 
@@ skipping 22 matching lines @@
 
   if (resource_) {
     DCHECK(!bitmap_.isNull());
     layer_impl->SetResourceId(resource_->texture()->resource_id());
     layer_impl->SetLayout(
         gfx::Size(bitmap_.width(), bitmap_.height()), image_aperture_);
   }
 }
 
 }  // namespace cc