Fix for 'Simple Adblock' extension crashes

content/browser/renderer_host/render_process_host_impl.cc

 // Copyright (c) 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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 1297 matching lines @@
     IPC_BEGIN_MESSAGE_MAP(RenderProcessHostImpl, msg)
       IPC_MESSAGE_HANDLER(ChildProcessHostMsg_ShutdownRequest,
                           OnShutdownRequest)
       IPC_MESSAGE_HANDLER(ChildProcessHostMsg_DumpHandlesDone,
                           OnDumpHandlesDone)
       IPC_MESSAGE_HANDLER(ViewHostMsg_SuddenTerminationChanged,
                           SuddenTerminationChanged)
       IPC_MESSAGE_HANDLER(ViewHostMsg_UserMetricsRecordAction,
                           OnUserMetricsRecordAction)
       IPC_MESSAGE_HANDLER(ViewHostMsg_SavedPageAsMHTML, OnSavedPageAsMHTML)
+      IPC_MESSAGE_HANDLER(ViewHostMsg_Close_ACK, OnCloseACK)
       // Adding single handlers for your service here is fine, but once your
       // service needs more than one handler, please extract them into a new
       // message filter and add that filter to CreateMessageFilters().
     IPC_END_MESSAGE_MAP()
 
     return true;
   }
 
   // Dispatch incoming messages to the appropriate IPC::Listener.
   IPC::Listener* listener = listeners_.Lookup(msg.routing_id());
@@ skipping 111 matching lines @@
     deleting_soon_ = true;
     // It's important not to wait for the DeleteTask to delete the channel
     // proxy. Kill it off now. That way, in case the profile is going away, the
     // rest of the objects attached to this RenderProcessHost start going
     // away first, since deleting the channel proxy will post a
     // OnChannelClosed() to IPC::ChannelProxy::Context on the IO thread.
     channel_.reset();
     gpu_message_filter_ = NULL;
     message_port_message_filter_ = NULL;
     screen_orientation_dispatcher_host_ = NULL;
+    session_storage_namespaces_awaiting_close_.clear();
 
     // Remove ourself from the list of renderer processes so that we can't be
     // reused in between now and when the Delete task runs.
     UnregisterHost(GetID());
   }
 }
 
 void RenderProcessHostImpl::AddPendingView() {
   pending_views_++;
 }
@@ skipping 369 matching lines @@
   FOR_EACH_OBSERVER(RenderProcessHostObserver,
                     observers_,
                     RenderProcessExited(this, GetHandle(), status, exit_code));
   within_process_died_observer_ = false;
 
   child_process_launcher_.reset();
   channel_.reset();
   gpu_message_filter_ = NULL;
   message_port_message_filter_ = NULL;
   screen_orientation_dispatcher_host_ = NULL;
+  session_storage_namespaces_awaiting_close_.clear();
 
   IDMap<IPC::Listener>::iterator iter(&listeners_);
   while (!iter.IsAtEnd()) {
     iter.GetCurrentValue()->OnMessageReceived(
         ViewHostMsg_RenderProcessGone(iter.GetCurrentKey(),
                                       static_cast<int>(status),
                                       exit_code));
     iter.Advance();
   }
 
@@ skipping 48 matching lines @@
   if (!webrtc_log_message_callback_.is_null())
     webrtc_log_message_callback_.Run(message);
 }
 #endif
 
 scoped_refptr<ScreenOrientationDispatcherHost>
 RenderProcessHostImpl::screen_orientation_dispatcher_host() const {
   return make_scoped_refptr(screen_orientation_dispatcher_host_);
 }
 
+void RenderProcessHostImpl::ReleaseOnCloseAck(
+    const SessionStorageNamespaceMap& sessions,
+    int view_route_id) {
+  session_storage_namespaces_awaiting_close_[view_route_id] = sessions;
+}
+
 void RenderProcessHostImpl::OnShutdownRequest() {
   // Don't shut down if there are active RenderViews, or if there are pending
   // RenderViews being swapped back in.
   // In single process mode, we never shutdown the renderer.
   int num_active_views = GetActiveViewCount();
   if (pending_views_ || num_active_views > 0 || run_renderer_in_process())
     return;
 
   // Notify any contents that might have swapped out renderers from this
   // process. They should not attempt to swap them back in.
@@ skipping 83 matching lines @@
 scoped_refptr<AudioRendererHost>
 RenderProcessHostImpl::audio_renderer_host() const {
   return audio_renderer_host_;
 }
 
 void RenderProcessHostImpl::OnUserMetricsRecordAction(
     const std::string& action) {
   RecordComputedAction(action);
 }
 
+void RenderProcessHostImpl::OnCloseACK(int old_route_id) {
+  session_storage_namespaces_awaiting_close_.erase(old_route_id);
+}
+
 void RenderProcessHostImpl::OnSavedPageAsMHTML(int job_id, int64 data_size) {
   MHTMLGenerationManager::GetInstance()->MHTMLGenerated(job_id, data_size);
 }
 
 void RenderProcessHostImpl::OnCompositorSurfaceBuffersSwappedNoHost(
       const ViewHostMsg_CompositorSurfaceBuffersSwapped_Params& params) {
   TRACE_EVENT0("renderer_host",
                "RenderWidgetHostImpl::OnCompositorSurfaceBuffersSwappedNoHost");
   if (!ui::LatencyInfo::Verify(params.latency_info,
                                "ViewHostMsg_CompositorSurfaceBuffersSwapped"))
@@ skipping 53 matching lines @@
     mojo::ScopedMessagePipeHandle handle) {
   mojo_activation_required_ = true;
   MaybeActivateMojo();
 
   mojo::AllocationScope scope;
   mojo_application_host_->service_provider()->ConnectToService(service_name,
                                                                handle.Pass());
 }
 
 }  // namespace content