Add more debugging for https://crbug.com/1006814.

Record whether we are currently in the middle of dispatching handlers
for process-death as this is a stronger contender for how this is
occurring.

Bug: 1006814
Change-Id: I0d269c250a870c25088e92c4b207e7fa647f0bbe
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2106987Reviewed-by: Alex Moshchuk <alexmos@chromium.org>
Reviewed-by: Arthur Sonzogni <arthursonzogni@chromium.org>
Commit-Queue: Alex Moshchuk <alexmos@chromium.org>
Auto-Submit: Fergal Daly <fergal@chromium.org>
Cr-Commit-Position: refs/heads/master@{#751604}

content/browser/frame_host/render_frame_host_manager.cc

@@ -2221,11 +2221,15 @@ RenderFrameHostManager::CreateSpeculativeRenderFrame(SiteInstance* instance) {
     int main_rfh_routing_id =
         render_view_host->GetMainFrameRoutingIdForCrbug1006814();
     std::string message = base::StringPrintf(
-        "created=%d,process=%d,proxy=%d,widget=%d,main_rfh=%d,new_rfh=%d",
+        "created=%d,process=%d,proxy=%d,widget=%d,main_rfh=%d,new_rfh=%d,"
+        "in_pdo=%d",
         new_render_frame_host->IsRenderFrameCreated(),
         new_render_frame_host->GetProcess()->IsInitializedAndNotDead(),
         !!GetRenderFrameProxyHost(instance), widget_renderer_initialized,
-        main_rfh_routing_id, new_render_frame_host->routing_id());
+        main_rfh_routing_id, new_render_frame_host->routing_id(),
+        static_cast<RenderProcessHostImpl*>(
+            render_view_host->GetWidget()->GetProcess())
+            ->GetWithinProcessDiedObserverForCrbug1006814());
     // This string is whitelisted for collection from Android Webview. It must
     // only contain booleans to avoid leaking any PII.
     base::debug::SetCrashKeyString(crash_key, message);

content/browser/renderer_host/render_process_host_impl.h

@@ -297,6 +297,11 @@ class CONTENT_EXPORT RenderProcessHostImpl
     child_process_activity_time_ = base::TimeTicks::Now();
   }
 
+  // TODO(https://crbug.com/1006814): Delete this.
+  bool GetWithinProcessDiedObserverForCrbug1006814() {
+    return within_process_died_observer_;
+  }
+
   // Used to extend the lifetime of the sessions until the render view
   // in the renderer is fully closed. This is static because its also called
   // with mock hosts as input in test cases. The RenderWidget routing associated