[ServiceWorker] Stop using FetchRequestData::Mode and FetchRequestData::Credentials.

Source/modules/serviceworkers/FetchManager.cpp

Index: Source/modules/serviceworkers/FetchManager.cpp
diff --git a/Source/modules/serviceworkers/FetchManager.cpp b/Source/modules/serviceworkers/FetchManager.cpp
index fd25997e85bb4bd27a3b79c656144635980b1dec..7af242a18ace3960464ef17750055459d1399997 100644
--- a/Source/modules/serviceworkers/FetchManager.cpp
+++ b/Source/modules/serviceworkers/FetchManager.cpp
@@ -175,14 +175,14 @@ void FetchManager::Loader::start()
     }
 
     // "- |request|'s mode is |same-origin|"
-    if (m_request->mode() == FetchRequestData::SameOriginMode) {
+    if (m_request->mode() == WebURLRequest::FetchRequestModeSameOrigin) {
         // "A network error."
         performNetworkError();
         return;
     }
 
     // "- |request|'s mode is |no CORS|"
-    if (m_request->mode() == FetchRequestData::NoCORSMode) {
+    if (m_request->mode() == WebURLRequest::FetchRequestModeNoCORS) {
         // "Set |request|'s response tainting to |opaque|."
         m_request->setResponseTainting(FetchRequestData::OpaqueTainting);
         // "The result of performing a basic fetch using |request|."
@@ -201,7 +201,7 @@ void FetchManager::Loader::start()
     // "- |request|'s unsafe request flag is set and either |request|'s method
     // is not a simple method or a header in |request|'s header list is not a
     // simple header"
-    if (m_request->mode() == FetchRequestData::CORSWithForcedPreflight
+    if (m_request->mode() == WebURLRequest::FetchRequestModeCORSWithForcedPreflight
         || (m_request->unsafeRequestFlag()
             && (!FetchUtils::isSimpleMethod(m_request->method())
                 || m_request->headerList()->containsNonSimpleHeader()))) {
@@ -303,8 +303,8 @@ void FetchManager::Loader::performHTTPFetch()
     // and the |CORS flag| is unset, and unset otherwise.
     ResourceLoaderOptions resourceLoaderOptions;
     resourceLoaderOptions.dataBufferingPolicy = DoNotBufferData;
-    if (m_request->credentials() == FetchRequestData::IncludeCredentials
-        || (m_request->credentials() == FetchRequestData::SameOriginCredentials && !m_corsFlag)) {
+    if (m_request->credentials() == WebURLRequest::FetchCredentialsModeInclude
+        || (m_request->credentials() == WebURLRequest::FetchCredentialsModeSameOrigin && !m_corsFlag)) {
         resourceLoaderOptions.allowCredentials = AllowStoredCredentials;
     }