Linux: fix header includes for system protobuf.

chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.cc

 // Copyright (c) 2012 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 "chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.h"
 
 #include <string>
 
 #include "base/base64.h"
 #include "base/logging.h"
@@ skipping 25 matching lines @@
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/resource_context.h"
 #include "content/public/browser/resource_dispatcher_host.h"
 #include "content/public/browser/resource_request_info.h"
 #include "net/base/load_flags.h"
 #include "net/base/ssl_config_service.h"
 #include "net/http/http_response_headers.h"
 #include "net/url_request/url_request.h"
+
+#if defined(USE_SYSTEM_PROTOBUF)
+#include <google/protobuf/repeated_field.h>
+#else
 #include "third_party/protobuf/src/google/protobuf/repeated_field.h"
+#endif
 
 #if defined(OS_ANDROID)
 #include "content/components/navigation_interception/intercept_navigation_delegate.h"
 #endif
 
 // TODO(oshima): Enable this for other platforms.
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/renderer_host/offline_resource_throttle.h"
 #endif
 
@@ skipping 452 matching lines @@
   if (base::Base64Encode(serialized, &hashed)) {
     // If successful, swap the header value with the new one.
     // Note that the list of IDs and the header could be temporarily out of sync
     // if IDs are added as the header is recreated. The receiving servers are OK
     // with such descrepancies.
     variation_ids_header_ = hashed;
   } else {
     DVLOG(1) << "Failed to base64 encode Variation IDs value: " << serialized;
   }
 }