Fix RenderFrameHostManagerTest.DontSwapProcessWithOnlyTargetBlank for OOPIF

content/browser/frame_host/render_frame_host_manager_browsertest.cc

Index: content/browser/frame_host/render_frame_host_manager_browsertest.cc
diff --git a/content/browser/frame_host/render_frame_host_manager_browsertest.cc b/content/browser/frame_host/render_frame_host_manager_browsertest.cc
index 3875c9c56d7648883a8dbcd904e24a20ded78700..18b5a68784c3e95a39efbed16264505a175c9dec 100644
--- a/content/browser/frame_host/render_frame_host_manager_browsertest.cc
+++ b/content/browser/frame_host/render_frame_host_manager_browsertest.cc
@@ -253,7 +253,8 @@ IN_PROC_BROWSER_TEST_F(RenderFrameHostManagerTest,
 }
 
 // Test for crbug.com/24447.  Following a cross-site link with just
-// target=_blank should not create a new SiteInstance.
+// target=_blank should not create a new SiteInstance, unless we
+// are running in --site-per-process mode.
 IN_PROC_BROWSER_TEST_F(RenderFrameHostManagerTest,
                        DontSwapProcessWithOnlyTargetBlank) {
   StartServer();
@@ -288,10 +289,14 @@ IN_PROC_BROWSER_TEST_F(RenderFrameHostManagerTest,
   EXPECT_EQ("/files/title2.html",
             new_shell->web_contents()->GetLastCommittedURL().path());
 
-  // Should have the same SiteInstance.
+  // Should have the same SiteInstance unless we're in site-per-process mode.
   scoped_refptr<SiteInstance> blank_site_instance(
       new_shell->web_contents()->GetSiteInstance());
-  EXPECT_EQ(orig_site_instance, blank_site_instance);
+  if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kSitePerProcess))
+    EXPECT_EQ(orig_site_instance, blank_site_instance);
+  else
+    EXPECT_NE(orig_site_instance, blank_site_instance);
 }
 
 // Test for crbug.com/24447.  Following a cross-site link with rel=noreferrer