Don't increment lazy keep alive count on redirects.

chrome/browser/net/chrome_extensions_network_delegate.cc

Index: chrome/browser/net/chrome_extensions_network_delegate.cc
diff --git a/chrome/browser/net/chrome_extensions_network_delegate.cc b/chrome/browser/net/chrome_extensions_network_delegate.cc
index cbc9654ddea608e3895ee59068ab370df5e0b89e..66c0c01c2cca9fc017fa250a575835295217197f 100644
--- a/chrome/browser/net/chrome_extensions_network_delegate.cc
+++ b/chrome/browser/net/chrome_extensions_network_delegate.cc
@@ -65,6 +65,11 @@ void ForwardRequestStatus(
   if (!info)
     return;
 
+  if (status == REQUEST_STARTED && request->url_chain().size() > 1) {
+    // It's a redirect, this request has already been counted.
+    return;
+  }
+
   int process_id, render_frame_id;
   if (info->GetAssociatedRenderFrame(&process_id, &render_frame_id)) {
     BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,