Revert of Preserving Content-Type header from http request in OpenURL path.

content/browser/frame_host/navigator_impl.cc

Index: content/browser/frame_host/navigator_impl.cc
diff --git a/content/browser/frame_host/navigator_impl.cc b/content/browser/frame_host/navigator_impl.cc
index 16fe406e5fecd0dbeaf757c634f36faf6d4869e9..8e704b1fc7d314d2bcda10d78ead7d017047e4a7 100644
--- a/content/browser/frame_host/navigator_impl.cc
+++ b/content/browser/frame_host/navigator_impl.cc
@@ -692,7 +692,6 @@ void NavigatorImpl::RequestOpenURL(
     const GURL& url,
     bool uses_post,
     const scoped_refptr<ResourceRequestBodyImpl>& body,
-    const std::string& extra_headers,
     SiteInstance* source_site_instance,
     const Referrer& referrer,
     WindowOpenDisposition disposition,
@@ -738,7 +737,6 @@ void NavigatorImpl::RequestOpenURL(
                        true /* is_renderer_initiated */);
   params.uses_post = uses_post;
   params.post_data = body;
-  params.extra_headers = extra_headers;
   params.source_site_instance = source_site_instance;
   if (redirect_chain.size() > 0)
     params.redirect_chain = redirect_chain;
@@ -781,8 +779,7 @@ void NavigatorImpl::RequestTransferURL(
     const GlobalRequestID& transferred_global_request_id,
     bool should_replace_current_entry,
     const std::string& method,
-    scoped_refptr<ResourceRequestBodyImpl> post_body,
-    const std::string& extra_headers) {
+    scoped_refptr<ResourceRequestBodyImpl> post_body) {
   // |method != "POST"| should imply absence of |post_body|.
   if (method != "POST" && post_body) {
     NOTREACHED();
@@ -842,7 +839,6 @@ void NavigatorImpl::RequestTransferURL(
     CHECK(SiteIsolationPolicy::UseSubframeNavigationEntries());
     if (controller_->GetLastCommittedEntry()) {
       entry = controller_->GetLastCommittedEntry()->Clone();
-      entry->set_extra_headers(extra_headers);
     } else {
       // If there's no last committed entry, create an entry for about:blank
       // with a subframe entry for our destination.
@@ -850,7 +846,7 @@ void NavigatorImpl::RequestTransferURL(
       entry = NavigationEntryImpl::FromNavigationEntry(
           controller_->CreateNavigationEntry(
               GURL(url::kAboutBlankURL), referrer_to_use, page_transition,
-              is_renderer_initiated, extra_headers,
+              is_renderer_initiated, std::string(),
               controller_->GetBrowserContext()));
     }
     entry->AddOrUpdateFrameEntry(
@@ -863,7 +859,7 @@ void NavigatorImpl::RequestTransferURL(
     entry = NavigationEntryImpl::FromNavigationEntry(
         controller_->CreateNavigationEntry(
             dest_url, referrer_to_use, page_transition, is_renderer_initiated,
-            extra_headers, controller_->GetBrowserContext()));
+            std::string(), controller_->GetBrowserContext()));
     entry->root_node()->frame_entry->set_source_site_instance(
         static_cast<SiteInstanceImpl*>(source_site_instance));
     entry->SetRedirectChain(redirect_chain);