Add GetPluginRefererURL to PPB_URLUtil_Dev interface to get the 'Referer' HTTP header value that wa…

ppapi/tests/test_url_util.cc

 // Copyright (c) 2011 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 "ppapi/tests/test_url_util.h"
 
 #include "ppapi/c/dev/ppb_url_util_dev.h"
 #include "ppapi/cpp/dev/url_util_dev.h"
 #include "ppapi/tests/testing_instance.h"
 
@@ skipping 10 matching lines @@
 }
 
 void TestURLUtil::RunTests(const std::string& filter) {
   RUN_TEST(Canonicalize, filter);
   RUN_TEST(ResolveRelative, filter);
   RUN_TEST(IsSameSecurityOrigin, filter);
   RUN_TEST(DocumentCanRequest, filter);
   RUN_TEST(DocumentCanAccessDocument, filter);
   RUN_TEST(GetDocumentURL, filter);
   RUN_TEST(GetPluginInstanceURL, filter);
+  RUN_TEST(GetPluginRefererURL, filter);
 }
 
 std::string TestURLUtil::TestCanonicalize() {
   // Test no canonicalize output.
   pp::Var result = util_->Canonicalize("http://Google.com");
   ASSERT_TRUE(result.AsString() == "http://google.com/");
 
   // Test all the components
   PP_URLComponents_Dev c;
   result = util_->Canonicalize(
@@ skipping 88 matching lines @@
   PASS();
 }
 
 std::string TestURLUtil::TestGetPluginInstanceURL() {
   pp::Var url = util_->GetPluginInstanceURL(instance_);
   ASSERT_TRUE(url.is_string());
   // see test_case.html
   ASSERT_EQ(url.AsString(), "http://a.b.c/test");
   PASS();
 }
+
+std::string TestURLUtil::TestGetPluginRefererURL() {
+  pp::Var url = util_->GetPluginRefererURL(instance_);
+  ASSERT_TRUE(url.is_undefined());
+  PASS();
+}