net: add IsMethodIdempotent() to HttpUtil

components/data_reduction_proxy/core/browser/data_reduction_proxy_bypass_protocol.cc

Index: components/data_reduction_proxy/core/browser/data_reduction_proxy_bypass_protocol.cc
diff --git a/components/data_reduction_proxy/core/browser/data_reduction_proxy_bypass_protocol.cc b/components/data_reduction_proxy/core/browser/data_reduction_proxy_bypass_protocol.cc
index 10f161ec10de52a2e2f0217a9b451eb5a2eaa6df..c20c7ea1128ffe3f5c0d09fa84a30bd42c8977f1 100644
--- a/components/data_reduction_proxy/core/browser/data_reduction_proxy_bypass_protocol.cc
+++ b/components/data_reduction_proxy/core/browser/data_reduction_proxy_bypass_protocol.cc
@@ -13,9 +13,9 @@
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_config.h"
 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_headers.h"
 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_params.h"
-#include "components/data_reduction_proxy/core/common/data_reduction_proxy_util.h"
 #include "net/base/load_flags.h"
 #include "net/http/http_response_headers.h"
+#include "net/http/http_util.h"
 #include "net/proxy/proxy_config.h"
 #include "net/proxy/proxy_info.h"
 #include "net/proxy/proxy_list.h"
@@ -176,7 +176,7 @@ bool DataReductionProxyBypassProtocol::MaybeBypassProxyAndPrepareToRetry(
 
   // Retry if block-once was specified or if method is idempotent.
   return bypass_type == BYPASS_EVENT_TYPE_CURRENT ||
-         util::IsMethodIdempotent(request->method());
+         net::HttpUtil::IsMethodIdempotent(request->method());
 }
 
 }  // namespace data_reduction_proxy