Notify parent frame renderer when OOP child frame renderer crashes

content/renderer/child_frame_compositing_helper.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 "content/renderer/child_frame_compositing_helper.h"
 
 #include "cc/layers/delegated_frame_provider.h"
 #include "cc/layers/delegated_frame_resource_collection.h"
 #include "cc/layers/delegated_renderer_layer.h"
 #include "cc/layers/solid_color_layer.h"
@@ skipping 261 matching lines @@
   ack_pending_ = false;
   software_ack_pending_ = false;
   resource_collection_ = NULL;
   frame_provider_ = NULL;
   texture_layer_ = NULL;
   delegated_layer_ = NULL;
   background_layer_ = NULL;
   web_layer_.reset();
 }
 
+void ChildFrameCompositingHelper::ChildFrameGone() {
+  background_layer_->SetBackgroundColor(SkColorSetARGBInline(255, 0, 128, 0));
+  background_layer_->RemoveAllChildren();
+  background_layer_->SetIsDrawable(true);
+  background_layer_->SetContentsOpaque(true);
+}
+
 void ChildFrameCompositingHelper::OnBuffersSwappedPrivate(
     const SwapBuffersInfo& mailbox,
     unsigned sync_point,
     float device_scale_factor) {
   DCHECK(!delegated_layer_.get());
   // If these mismatch, we are either just starting up, GPU process crashed or
   // guest renderer crashed.
   // In this case, we are communicating with a new image transport
   // surface and must ACK with the new ID's and an empty mailbox.
   if (last_route_id_ != mailbox.route_id ||
@@ skipping 244 matching lines @@
                                       skia::ImageOperations::RESIZE_BEST,
                                       dest_size.width(),
                                       dest_size.height());
   }
   browser_plugin_manager_->Send(
       new BrowserPluginHostMsg_CopyFromCompositingSurfaceAck(
           host_routing_id_, instance_id_, request_id, resized_bitmap));
 }
 
 }  // namespace content