Process names, and predictable thread and process ordering in about:tracing

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index 54e4e4c682313bafdfc285e4dbe57d29e63f864e..625c2f6e7c98acf9cd1fa291a72bc1383c6be7ec 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -968,6 +968,8 @@ RenderViewImpl::~RenderViewImpl() {
   if (decrement_shared_popup_at_destruction_)
     shared_popup_counter_->data--;
 
+  base::debug::TraceLog::GetInstance()->RemoveProcessLabel(routing_id_);
+
   // If file chooser is still waiting for answer, dispatch empty answer.
   while (!file_chooser_completions_.empty()) {
     if (file_chooser_completions_.front()->completion) {
@@ -1954,6 +1956,9 @@ void RenderViewImpl::UpdateTitle(WebFrame* frame,
   if (frame->parent())
     return;
 
+  base::debug::TraceLog::GetInstance()->UpdateProcessLabel(
+      routing_id_, UTF16ToUTF8(title));
+
   string16 shortened_title = title.substr(0, kMaxTitleChars);
   Send(new ViewHostMsg_UpdateTitle(routing_id_, page_id_, shortened_title,
                                    title_direction));