Re-enable SitePerProcessBrowserTest.CrossSiteIframe

content/browser/site_per_process_browsertest.cc

 // Copyright (c) 2012 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/command_line.h"
 #include "base/strings/stringprintf.h"
 #include "content/browser/frame_host/cross_process_frame_connector.h"
 #include "content/browser/frame_host/frame_tree.h"
 #include "content/browser/frame_host/render_frame_proxy_host.h"
 #include "content/browser/frame_host/render_widget_host_view_child_frame.h"
@@ skipping 176 matching lines @@
   }
 
   virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
     command_line->AppendSwitch(switches::kSitePerProcess);
   }
 };
 
 // Ensure that we can complete a cross-process subframe navigation.
 // Crashes ChromeOS bot, but the bug is probably present on other platforms
 // also. http://crbug.com/399775
-IN_PROC_BROWSER_TEST_F(SitePerProcessBrowserTest, DISABLED_CrossSiteIframe) {
+IN_PROC_BROWSER_TEST_F(SitePerProcessBrowserTest, CrossSiteIframe) {
   host_resolver()->AddRule("*", "127.0.0.1");
   ASSERT_TRUE(test_server()->Start());
   GURL main_url(test_server()->GetURL("files/site_per_process_main.html"));
   NavigateToURL(shell(), main_url);
 
   // It is safe to obtain the root frame tree node here, as it doesn't change.
   FrameTreeNode* root =
       static_cast<WebContentsImpl*>(shell()->web_contents())->
           GetFrameTree()->root();
 
@@ skipping 356 matching lines @@
         "server-redirect?" + client_redirect_http_url.spec()));
     EXPECT_TRUE(NavigateIframeToURL(shell(), server_redirect_http_url, "test"));
 
     // DidFailProvisionalLoad when navigating to client_redirect_http_url.
     EXPECT_EQ(observer.navigation_url(), client_redirect_http_url);
     EXPECT_FALSE(observer.navigation_succeeded());
   }
 }
 
 }  // namespace content