Fix comment that described an earlier version of the code.

content/browser/frame_host/navigation_controller_impl_browsertest.cc

Index: content/browser/frame_host/navigation_controller_impl_browsertest.cc
diff --git a/content/browser/frame_host/navigation_controller_impl_browsertest.cc b/content/browser/frame_host/navigation_controller_impl_browsertest.cc
index ed3c374539884af3d0f1c60981daf0b09accd403..2782b1ac3d7d8598d548c0b4f3936c5271a13cff 100644
--- a/content/browser/frame_host/navigation_controller_impl_browsertest.cc
+++ b/content/browser/frame_host/navigation_controller_impl_browsertest.cc
@@ -74,7 +74,7 @@ IN_PROC_BROWSER_TEST_F(NavigationControllerBrowserTest,
     EXPECT_TRUE(NavigateToURL(shell(), url));
   }
 
-  // We expect http://www.a.com/0 and /1 to be gone.
+  // We expect page0 and page1 to be gone.
   EXPECT_EQ(kMaxEntryCount, controller.GetEntryCount());
   EXPECT_EQ(GURL("data:text/html,page2"),
             controller.GetEntryAtIndex(0)->GetURL());