Hide BrowsingInstance from all but SiteInstance, as intended by design.

content/browser/tab_contents/render_view_host_manager_unittest.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 "content/browser/browser_thread_impl.h"
 #include "content/browser/browser_url_handler.h"
 #include "content/browser/mock_content_browser_client.h"
 #include "content/browser/renderer_host/test_render_view_host.h"
 #include "content/browser/site_instance.h"
 #include "content/browser/tab_contents/navigation_controller_impl.h"
@@ skipping 180 matching lines @@
   TestRenderViewHost* dest_rvh2 = static_cast<TestRenderViewHost*>(
       contents2.GetRenderManagerForTesting()->pending_render_view_host());
   ASSERT_TRUE(dest_rvh2);
   ntp_rvh2->SendShouldCloseACK(true);
   dest_rvh2->SendNavigate(101, kDestUrl);
   ntp_rvh2->OnSwapOutACK();
 
   // The two RVH's should be different in every way.
   EXPECT_NE(active_rvh()->process(), dest_rvh2->process());
   EXPECT_NE(active_rvh()->site_instance(), dest_rvh2->site_instance());
-  EXPECT_NE(active_rvh()->site_instance()->browsing_instance(),
-            dest_rvh2->site_instance()->browsing_instance());
+  EXPECT_NE(active_rvh()->site_instance()->browsing_instance_,
+            dest_rvh2->site_instance()->browsing_instance_);
 
   // Navigate both to the new tab page, and verify that they share a
   // SiteInstance.
   NavigateActiveAndCommit(kNtpUrl);
 
   contents2.GetController().LoadURL(
       kNtpUrl, content::Referrer(), content::PAGE_TRANSITION_LINK,
       std::string());
   dest_rvh2->SendShouldCloseACK(true);
   static_cast<TestRenderViewHost*>(contents2.GetRenderManagerForTesting()->
@@ skipping 402 matching lines @@
   // current one.
   EXPECT_TRUE(contents()->GetRenderManagerForTesting()->
       pending_render_view_host() == NULL);
   EXPECT_EQ(evil_rvh, contents()->GetRenderManagerForTesting()->current_host());
 
   // Also we should not have a pending navigation entry.
   NavigationEntry* entry = contents()->GetController().GetActiveEntry();
   ASSERT_TRUE(entry != NULL);
   EXPECT_EQ(kUrl2, entry->GetURL());
 }