Stop sending Accept-Charset HTTP header.

net/url_request/url_request_http_job.cc

Index: net/url_request/url_request_http_job.cc
diff --git a/net/url_request/url_request_http_job.cc b/net/url_request/url_request_http_job.cc
index 8dc1507b1f9f3bb64f95b8a4de6a89ee8b4a404d..29d46e0da9220e21b3e7f5a5ad90d20f909fa16f 100644
--- a/net/url_request/url_request_http_job.cc
+++ b/net/url_request/url_request_http_job.cc
@@ -482,8 +482,8 @@ void URLRequestHttpJob::AddExtraHeaders() {
   }
 
   if (http_user_agent_settings_) {
-    // Only add default Accept-Language and Accept-Charset if the request
-    // didn't have them specified.
+    // Only add default Accept-Language if the request didn't have it
+    // specified.
     std::string accept_language =
         http_user_agent_settings_->GetAcceptLanguage();
     if (!accept_language.empty()) {
@@ -491,12 +491,6 @@ void URLRequestHttpJob::AddExtraHeaders() {
           HttpRequestHeaders::kAcceptLanguage,
           accept_language);
     }
-    std::string accept_charset = http_user_agent_settings_->GetAcceptCharset();
-    if (!accept_charset.empty()) {
-      request_info_.extra_headers.SetHeaderIfMissing(
-          HttpRequestHeaders::kAcceptCharset,
-          accept_charset);
-    }
   }
 }