Introduce "navigate" mode in Requests

third_party/WebKit/Source/modules/fetch/Request.cpp

 // 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 "config.h"
 #include "modules/fetch/Request.h"
 
 #include "bindings/core/v8/Dictionary.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExecutionContext.h"
@@ skipping 144 matching lines @@
                 return nullptr;
             } else {
                 // 7. Set |request|'s referrer to |parsedReferrer|.
                 request->setReferrerString(AtomicString(parsedReferrer.string()));
             }
         }
         request->setReferrerPolicy(init.referrer.referrerPolicy);
     }
 
 
-    // "17. Let |mode| be |init|'s mode member if it is present, and
+    // "16. Let |mode| be |init|'s mode member if it is present, and
     // |fallbackMode| otherwise."
+    // "17.If mode is "navigate", throw a TypeError.
     // "18. If |mode| is non-null, set |request|'s mode to |mode|."
+    if (init.mode == "navigate") {
+        exceptionState.throwTypeError("Cannot construct a Request with a Request mode as navigate.");
+        return nullptr;
+    }
     if (init.mode == "same-origin") {
         request->setMode(WebURLRequest::FetchRequestModeSameOrigin);
     } else if (init.mode == "no-cors") {
         request->setMode(WebURLRequest::FetchRequestModeNoCORS);
     } else if (init.mode == "cors") {
         request->setMode(WebURLRequest::FetchRequestModeCORS);
     } else {
         if (!inputRequest)
             request->setMode(WebURLRequest::FetchRequestModeCORS);
     }
@@ skipping 305 matching lines @@
     ASSERT(FetchRequestData::noReferrerString() == AtomicString());
     ASSERT(FetchRequestData::clientReferrerString() == AtomicString("about:client"));
     return m_request->referrerString();
 }
 
 String Request::mode() const
 {
     // "The mode attribute's getter must return the value corresponding to the
     // first matching statement, switching on request's mode:"
     switch (m_request->mode()) {
+    case WebURLRequest::FetchRequestModeNavigate:
+        return "navigate";
     case WebURLRequest::FetchRequestModeSameOrigin:
         return "same-origin";
     case WebURLRequest::FetchRequestModeNoCORS:
         return "no-cors";
     case WebURLRequest::FetchRequestModeCORS:
     case WebURLRequest::FetchRequestModeCORSWithForcedPreflight:
         return "cors";
     }
     ASSERT_NOT_REACHED();
     return "";
@@ skipping 86 matching lines @@
 }
 
 DEFINE_TRACE(Request)
 {
     Body::trace(visitor);
     visitor->trace(m_request);
     visitor->trace(m_headers);
 }
 
 } // namespace blink