Centralize the setting of Accept headers

content/browser/frame_host/navigation_request.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/frame_host/navigation_request.h"
 
 #include <utility>
 
 #include "content/browser/devtools/render_frame_devtools_agent_host.h"
 #include "content/browser/frame_host/frame_tree.h"
@@ skipping 61 matching lines @@
     LoFiState lofi_state,
     bool is_same_document_history_load,
     const base::TimeTicks& navigation_start,
     NavigationControllerImpl* controller) {
   // Copy existing headers and add necessary headers that may not be present
   // in the RequestNavigationParams.
   net::HttpRequestHeaders headers;
   headers.AddHeadersFromString(entry.extra_headers());
   headers.SetHeaderIfMissing(net::HttpRequestHeaders::kUserAgent,
                              GetContentClient()->GetUserAgent());
-  // TODO(clamy): match what blink is doing with accept headers.
-  headers.SetHeaderIfMissing("Accept", "*/*");
 
   // Fill POST data from the browser in the request body.
   scoped_refptr<ResourceRequestBody> request_body;
   if (entry.GetHasPostData()) {
     request_body = new ResourceRequestBody();
     request_body->AppendBytes(
         reinterpret_cast<const char *>(
             entry.GetBrowserInitiatedPostData()->front()),
         entry.GetBrowserInitiatedPostData()->size());
   }
@@ skipping 361 matching lines @@
       browser_context, navigating_frame_host->GetSiteInstance());
   DCHECK(partition);
 
   ServiceWorkerContextWrapper* service_worker_context =
       static_cast<ServiceWorkerContextWrapper*>(
           partition->GetServiceWorkerContext());
   navigation_handle_->InitServiceWorkerHandle(service_worker_context);
 }
 
 }  // namespace content