ui: Cleanup class/struct forward declarations

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 8c394bc69afc15741c64f1925317fd4efff26eec..ba63945eeb29b13d2d8344f7be2a404fe2520c91 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -867,7 +867,6 @@ bool RenderProcessHostImpl::Init() {
     // in-process plugins.
     options.message_loop_type = base::MessageLoop::TYPE_DEFAULT;
 #endif
-
     // As for execution sequence, this callback should have no any dependency
     // on starting in-process-render-thread.
     // So put it here to trigger ChannelMojo initialization earlier to enable
@@ -1596,6 +1595,8 @@ void RenderProcessHostImpl::AppendRendererCommandLine(
 
   command_line->AppendSwitchASCII(switches::kServiceRequestChannelToken,
                                   child_connection_->service_token());
+  command_line->AppendSwitchASCII(switches::kRendererClientId,
+                                  std::to_string(GetID()));
 }
 
 void RenderProcessHostImpl::PropagateBrowserCommandLineToRenderer(
@@ -2804,8 +2805,14 @@ void RenderProcessHostImpl::OnProcessLaunched() {
     // Not all platforms launch processes in the same backgrounded state. Make
     // sure |is_process_backgrounded_| reflects this platform's initial process
     // state.
+#if defined(OS_MACOSX)
+    is_process_backgrounded_ =
+        child_process_launcher_->GetProcess().IsProcessBackgrounded(
+            MachBroker::GetInstance());
+#else
     is_process_backgrounded_ =
         child_process_launcher_->GetProcess().IsProcessBackgrounded();
+#endif  // defined(OS_MACOSX)
 
     // Disable updating process priority on startup for now as it incorrectly
     // results in backgrounding foreground navigations until their first commit