Fixes for WebContents associated interfaces support

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index a12f3ae03bce924e19f1ffdfaef4cc1b091365af..61eb578b2b1e317d463d69949acb62d5507a6e56 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -838,6 +838,10 @@ bool RenderProcessHostImpl::Init() {
   if (channel_)
     return true;
 
+  // Ensure that the RouteProvider proxy is re-initialized on next access since
+  // it's associated with a specific Channel instance.
+  remote_route_provider_.reset();
+
   base::CommandLine::StringType renderer_prefix;
   // A command prefix is something prepended to the command line of the spawned
   // process.