Expose data reduction proxy auth token for internal builds.

components/data_reduction_proxy/browser/data_reduction_proxy_auth_request_handler.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 "components/data_reduction_proxy/browser/data_reduction_proxy_auth_request_handler.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/string_split.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "components/data_reduction_proxy/browser/data_reduction_proxy_params.h"
 #include "components/data_reduction_proxy/browser/data_reduction_proxy_protocol.h"
 #include "components/data_reduction_proxy/browser/data_reduction_proxy_settings.h"
 #include "components/data_reduction_proxy/common/data_reduction_proxy_headers.h"
 #include "components/data_reduction_proxy/common/data_reduction_proxy_switches.h"
 #include "components/data_reduction_proxy/common/version.h"
 #include "crypto/random.h"
+#include "google_apis/google_api_keys.h"
 #include "net/base/host_port_pair.h"
 #include "net/proxy/proxy_server.h"
 #include "net/url_request/url_request.h"
 #include "url/gurl.h"
 
 namespace data_reduction_proxy {
 
 // The empty version for the authentication protocol. Currently used by
 // Android webview.
 #if defined(OS_ANDROID)
@@ skipping 179 matching lines @@
 }
 
 std::string DataReductionProxyAuthRequestHandler::GetDefaultKey() const {
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
   std::string key =
     command_line.GetSwitchValueASCII(switches::kDataReductionProxyKey);
 #if defined(SPDY_PROXY_AUTH_VALUE)
   if (key.empty())
     key = SPDY_PROXY_AUTH_VALUE;
 #endif
+  if (key.empty()) {
+    key = google_apis::GetSpdyProxyAuthValue();
+  }
   return key;
 }
 
 void DataReductionProxyAuthRequestHandler::MaybeAddRequestHeaderImpl(
     const net::HostPortPair& proxy_server,
     bool expect_ssl,
     net::HttpRequestHeaders* request_headers) {
   if (proxy_server.IsEmpty())
     return;
   if (data_reduction_proxy_params_ &&
       data_reduction_proxy_params_->IsDataReductionProxy(proxy_server, NULL) &&
       net::HostPortPair::FromURL(
           data_reduction_proxy_params_->ssl_origin()).Equals(
               proxy_server) == expect_ssl) {
     AddAuthorizationHeader(request_headers);
   }
 }
 
 }  // namespace data_reduction_proxy