Diagnose RenderFrameImpl::didCommitProvisionalLoad crash.

content/renderer/render_thread_impl.cc

Index: content/renderer/render_thread_impl.cc
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc
index c22b0a73fff889df000e06f40e139de6427dbaf0..e94df24290b687a85302e7e863f53b3f708ed6c5 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -12,6 +12,7 @@
 
 #include "base/allocator/allocator_extension.h"
 #include "base/command_line.h"
+#include "base/debug/crash_logging.h"
 #include "base/lazy_instance.h"
 #include "base/location.h"
 #include "base/logging.h"
@@ -1764,6 +1765,15 @@ void RenderThreadImpl::OnCreateNewFrameProxy(
     int opener_routing_id,
     int parent_routing_id,
     const FrameReplicationState& replicated_state) {
+  // Debug cases of https://crbug.com/575245.
+  base::debug::SetCrashKeyValue("newproxy_proxy_id",
+                                base::IntToString(routing_id));
+  base::debug::SetCrashKeyValue("newproxy_view_id",
+                                base::IntToString(render_view_routing_id));
+  base::debug::SetCrashKeyValue("newproxy_opener_id",
+                                base::IntToString(opener_routing_id));
+  base::debug::SetCrashKeyValue("newproxy_parent_id",
+                                base::IntToString(parent_routing_id));
   RenderFrameProxy::CreateFrameProxy(routing_id, render_view_routing_id,
                                      opener_routing_id, parent_routing_id,
                                      replicated_state);