All SSL UI tests work with ephemeral ports.

chrome/browser/renderer_host/test/render_view_host_manager_browsertest.cc

 // Copyright (c) 2009 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 "base/file_util.h"
 #include "base/path_service.h"
 #include "base/ref_counted.h"
-#include "base/stringprintf.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/download/download_manager.h"
 #include "chrome/browser/extensions/extension_error_reporter.h"
 #include "chrome/browser/profile.h"
 #include "chrome/browser/renderer_host/site_instance.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/notification_details.h"
 #include "chrome/common/notification_observer.h"
 #include "chrome/common/notification_registrar.h"
 #include "chrome/common/notification_service.h"
 #include "chrome/common/notification_type.h"
 #include "chrome/test/in_process_browser_test.h"
 #include "chrome/test/ui_test_utils.h"
 #include "net/base/net_util.h"
 #include "net/test/test_server.h"
 
 class RenderViewHostManagerTest : public InProcessBrowserTest {
  public:
   RenderViewHostManagerTest() {
     EnableDOMAutomation();
   }
 
-  std::string GetFileWithHostAndPortReplacement(
-      const std::string& original_path,
-      const net::HostPortPair& host_port_pair) const {
-    return StringPrintf("%s?replace_orig=%s&replace_new=%s",
-                        original_path.c_str(),
-                        kReplaceText_,
-                        host_port_pair.ToString().c_str());
+  static bool GetFilePathWithHostAndPortReplacement(
+      const std::string& original_file_path,
+      const net::HostPortPair& host_port_pair,
+      std::string* replacement_path) {
+    std::vector<std::string> replacement_text;
+    replacement_text.push_back("REPLACE_WITH_HOST_AND_PORT");
+    replacement_text.push_back(host_port_pair.ToString());
+    return net::TestServer::GetFilePathWithReplacements(
+        original_file_path, replacement_text, replacement_path);
   }
-
- private:
-  static const char* const kReplaceText_;
 };
 
-// static
-const char* const RenderViewHostManagerTest::kReplaceText_ =
-    "REPLACE_WITH_HOST_AND_PORT";
-
 // Test for crbug.com/24447.  Following a cross-site link with rel=noreferrer
 // and target=_blank should create a new SiteInstance.
 IN_PROC_BROWSER_TEST_F(RenderViewHostManagerTest,
                        SwapProcessWithRelNoreferrerAndTargetBlank) {
   // Start two servers with different sites.
   ASSERT_TRUE(test_server()->Start());
   net::TestServer https_server_(
       net::TestServer::TYPE_HTTPS,
       FilePath(FILE_PATH_LITERAL("chrome/test/data")));
   ASSERT_TRUE(https_server_.Start());
 
   // Load a page with links that open in a new window.
-  std::string replacement_path = GetFileWithHostAndPortReplacement(
+  std::string replacement_path;
+  ASSERT_TRUE(GetFilePathWithHostAndPortReplacement(
       "files/click-noreferrer-links.html",
-      https_server_.host_port_pair());
+      https_server_.host_port_pair(),
+      &replacement_path));
   ui_test_utils::NavigateToURL(browser(),
                                test_server()->GetURL(replacement_path));
 
   // Get the original SiteInstance for later comparison.
   scoped_refptr<SiteInstance> orig_site_instance(
       browser()->GetSelectedTabContents()->GetSiteInstance());
   EXPECT_TRUE(orig_site_instance != NULL);
 
   // Test clicking a rel=noreferrer + target=blank link.
   bool success = false;
@@ skipping 23 matching lines @@
 IN_PROC_BROWSER_TEST_F(RenderViewHostManagerTest,
                        DontSwapProcessWithOnlyTargetBlank) {
   // Start two servers with different sites.
   ASSERT_TRUE(test_server()->Start());
   net::TestServer https_server_(
       net::TestServer::TYPE_HTTPS,
       FilePath(FILE_PATH_LITERAL("chrome/test/data")));
   ASSERT_TRUE(https_server_.Start());
 
   // Load a page with links that open in a new window.
-  std::string replacement_path = GetFileWithHostAndPortReplacement(
+  std::string replacement_path;
+  ASSERT_TRUE(GetFilePathWithHostAndPortReplacement(
       "files/click-noreferrer-links.html",
-      https_server_.host_port_pair());
+      https_server_.host_port_pair(),
+      &replacement_path));
   ui_test_utils::NavigateToURL(browser(),
                                test_server()->GetURL(replacement_path));
 
   // Get the original SiteInstance for later comparison.
   scoped_refptr<SiteInstance> orig_site_instance(
       browser()->GetSelectedTabContents()->GetSiteInstance());
   EXPECT_TRUE(orig_site_instance != NULL);
 
   // Test clicking a target=blank link.
   bool success = false;
@@ skipping 23 matching lines @@
 IN_PROC_BROWSER_TEST_F(RenderViewHostManagerTest,
                        DontSwapProcessWithOnlyRelNoreferrer) {
   // Start two servers with different sites.
   ASSERT_TRUE(test_server()->Start());
   net::TestServer https_server_(
       net::TestServer::TYPE_HTTPS,
       FilePath(FILE_PATH_LITERAL("chrome/test/data")));
   ASSERT_TRUE(https_server_.Start());
 
   // Load a page with links that open in a new window.
-  std::string replacement_path = GetFileWithHostAndPortReplacement(
+  std::string replacement_path;
+  ASSERT_TRUE(GetFilePathWithHostAndPortReplacement(
       "files/click-noreferrer-links.html",
-      https_server_.host_port_pair());
+      https_server_.host_port_pair(),
+      &replacement_path));
   ui_test_utils::NavigateToURL(browser(),
                                test_server()->GetURL(replacement_path));
 
   // Get the original SiteInstance for later comparison.
   scoped_refptr<SiteInstance> orig_site_instance(
       browser()->GetSelectedTabContents()->GetSiteInstance());
   EXPECT_TRUE(orig_site_instance != NULL);
 
   // Test clicking a rel=noreferrer link.
   bool success = false;
@@ skipping 102 matching lines @@
       &result));
   EXPECT_TRUE(result);
   ui_test_utils::NavigateToURL(browser(), zip_url);
 
   ui_test_utils::WaitForDownloadCount(
     browser()->profile()->GetDownloadManager(), 1);
 
   browser()->CloseWindow();
   BrowserClosedObserver wait_for_close(browser());
 }