Revert "Create errors (especially cancellation errors) internally to WebCore, rather"

Tools/DumpRenderTree/chromium/TestRunner/src/WebTestProxy.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 1234 matching lines @@
             if (element.hasAttribute("id"))
                 m_delegate->printMessage(string("id '") + element.getAttribute("id").utf8().data() + "'");
             else
                 m_delegate->printMessage("no id");
         } else
             m_delegate->printMessage(string(" - ") + request.initiatorName().utf8().data());
         m_delegate->printMessage(string(" requested '") + URLDescription(request.urlRequest().url()).c_str() + "'\n");
     }
 }
 
+bool WebTestProxyBase::canHandleRequest(WebFrame*, const WebURLRequest& request)
+{
+    GURL url = request.url();
+    // Just reject the scheme used in
+    // LayoutTests/http/tests/misc/redirect-to-external-url.html
+    return !url.SchemeIs("spaceballs");
+}
+
+WebURLError WebTestProxyBase::cannotHandleRequestError(WebFrame*, const WebURLRequest& request)
+{
+    WebURLError error;
+    // A WebKit layout test expects the following values.
+    // unableToImplementPolicyWithError() below prints them.
+    error.domain = WebString::fromUTF8("WebKitErrorDomain");
+    error.reason = 101;
+    error.unreachableURL = request.url();
+    return error;
+}
+
 void WebTestProxyBase::didCreateDataSource(WebFrame*, WebDataSource* ds)
 {
     if (!m_testInterfaces->testRunner()->deferMainResourceDataLoad())
         ds->setDeferMainResourceDataLoad(false);
 }
 
 void WebTestProxyBase::willSendRequest(WebFrame*, unsigned identifier, WebKit::WebURLRequest& request, const WebKit::WebURLResponse& redirectResponse)
 {
     // Need to use GURL for host() and SchemeIs()
     GURL url = request.url();
@@ skipping 110 matching lines @@
             m_delegate->printMessage("<unknown>");
         else
             m_delegate->printMessage(m_resourceIdentifierMap[identifier]);
         m_delegate->printMessage(" - didFailLoadingWithError: ");
         m_delegate->printMessage(m_delegate->makeURLErrorDescription(error));
         m_delegate->printMessage("\n");
     }
     m_resourceIdentifierMap.erase(identifier);
 }
 
+void WebTestProxyBase::unableToImplementPolicyWithError(WebKit::WebFrame* frame, const WebKit::WebURLError& error)
+{
+    char errorBuffer[40];
+    snprintf(errorBuffer, sizeof(errorBuffer), "%d", error.reason);
+    m_delegate->printMessage(string("Policy delegate: unable to implement policy with error domain '") + error.domain.utf8().data() +
+        "', error code " +  errorBuffer +
+        ", in frame '" + frame->uniqueName().utf8().data() + "'\n");
+}
+
 void WebTestProxyBase::didAddMessageToConsole(const WebConsoleMessage& message, const WebString& sourceName, unsigned sourceLine)
 {
     // This matches win DumpRenderTree's UIDelegate.cpp.
     if (!m_logConsoleOutput)
         return;
     m_delegate->printMessage(string("CONSOLE MESSAGE: "));
     if (sourceLine) {
         char buffer[40];
         snprintf(buffer, sizeof(buffer), "line %d: ", sourceLine);
         m_delegate->printMessage(buffer);
@@ skipping 62 matching lines @@
 {
     if (m_testInterfaces->testRunner()->shouldInterceptPostMessage()) {
         m_delegate->printMessage("intercepted postMessage\n");
         return true;
     }
 
     return false;
 }
 
 }