Provide mutable members of UrlRequestContext via pure-virtual interface

chrome/browser/automation/url_request_automation_job.cc

Index: chrome/browser/automation/url_request_automation_job.cc
diff --git a/chrome/browser/automation/url_request_automation_job.cc b/chrome/browser/automation/url_request_automation_job.cc
index a5c790d09072eae3091a6b509104ee23df2f0a93..74669580c188ec89aae51f2f0f19524bf2514168 100644
--- a/chrome/browser/automation/url_request_automation_job.cc
+++ b/chrome/browser/automation/url_request_automation_job.cc
@@ -422,16 +422,20 @@ void URLRequestAutomationJob::StartAsync() {
   // Only add default Accept-Language and Accept-Charset if the request
   // didn't have them specified.
   if (!new_request_headers.HasHeader(
-      net::HttpRequestHeaders::kAcceptLanguage) &&
-      !request_->context()->accept_language().empty()) {
-    new_request_headers.SetHeader(net::HttpRequestHeaders::kAcceptLanguage,
-                                  request_->context()->accept_language());
+      net::HttpRequestHeaders::kAcceptLanguage)) {
+    std::string accept_language = request_->context()->GetAcceptLanguage();
+    if (!accept_language.empty()) {
+      new_request_headers.SetHeader(net::HttpRequestHeaders::kAcceptLanguage,
+                                    accept_language);
+    }
   }
   if (!new_request_headers.HasHeader(
-      net::HttpRequestHeaders::kAcceptCharset) &&
-      !request_->context()->accept_charset().empty()) {
-    new_request_headers.SetHeader(net::HttpRequestHeaders::kAcceptCharset,
-                                  request_->context()->accept_charset());
+      net::HttpRequestHeaders::kAcceptCharset)) {
+    std::string accept_charset = request_->context()->GetAcceptCharset();
+    if (!accept_charset.empty()) {
+      new_request_headers.SetHeader(net::HttpRequestHeaders::kAcceptCharset,
+                                    accept_charset);
+    }
   }
 
   // Ensure that we do not send username and password fields in the referrer.