Add 'waitUntilExternalURLLoad' method to TestRunner.

content/shell/renderer/test_runner/WebTestProxy.cpp

Index: content/shell/renderer/test_runner/WebTestProxy.cpp
diff --git a/content/shell/renderer/test_runner/WebTestProxy.cpp b/content/shell/renderer/test_runner/WebTestProxy.cpp
index 6d16fda8fba37bba3bf339c833df0644614e7e7c..70f523b7414bded32dba94eb1080aab635c05c3f 100644
--- a/content/shell/renderer/test_runner/WebTestProxy.cpp
+++ b/content/shell/renderer/test_runner/WebTestProxy.cpp
@@ -1019,6 +1019,18 @@ bool WebTestProxyBase::isChooserShown()
     return 0 < m_chooserCount;
 }
 
+void WebTestProxyBase::loadURLExternally(WebFrame* frame, const WebURLRequest& request, WebNavigationPolicy policy, const WebString& suggested_name)
+{
+    if (m_testInterfaces->testRunner()->shouldWaitUntilExternURLLoad()) {
+        if (policy == WebNavigationPolicyDownload) {
+            m_delegate->printMessage(string("Downloading URL with suggested filename \"") + suggested_name.utf8() + "\"\n");
+        } else {
+            m_delegate->printMessage(string("Loading URL externally - \"") + URLDescription(request.url()) + "\"\n");
+        }
+        m_delegate->testFinished();
+    }
+}
+
 void WebTestProxyBase::didStartProvisionalLoad(WebFrame* frame)
 {
     if (!m_testInterfaces->testRunner()->topLoadingFrame())