Default to 4 rather than an unlimited number of retries for slow DNS resolves.

Fixes an argument shadowing a samed-named member.

Bug: 976948
Change-Id: Ic0b1a1a189a8db1a345804041eb76767553a7f15
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1670331Reviewed-by: Eric Orth <ericorth@chromium.org>
Reviewed-by: Matt Menke <mmenke@chromium.org>
Commit-Queue: Eric Roman <eroman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#671767}

net/dns/host_resolver_proc.cc

@@ -280,9 +280,9 @@ const base::TimeDelta ProcTaskParams::kDnsDefaultUnresponsiveDelay =
     base::TimeDelta::FromSeconds(6);
 
 ProcTaskParams::ProcTaskParams(HostResolverProc* resolver_proc,
-                               size_t max_retry_attempts)
+                               size_t in_max_retry_attempts)
     : resolver_proc(resolver_proc),
-      max_retry_attempts(max_retry_attempts),
+      max_retry_attempts(in_max_retry_attempts),
       unresponsive_delay(kDnsDefaultUnresponsiveDelay),
       retry_factor(2) {
   // Maximum of 4 retry attempts for host resolution.