Reenable framebusting deprecation, change it to allow navigation if iframe has ever had a user gestu

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 "content/browser/site_per_process_browsertest.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 7012 matching lines @@
       root->child_at(0)->current_frame_host()->GetSiteInstance());
   EXPECT_TRUE(rvh->is_swapped_out_);
 
   // Have the child frame navigate its parent to its SiteInstance.
   GURL b_url(embedded_test_server()->GetURL("b.com", "/title1.html"));
   std::string script = base::StringPrintf(
       "window.domAutomationController.send("
       "parent.location = '%s');",
       b_url.spec().c_str());
 
+  // Ensure the child has received a user gesture, so that it has permission
+  // to framebust.
+  SimulateMouseClick(
+      root->child_at(0)->current_frame_host()->GetRenderWidgetHost(), 1, 1);
   TestFrameNavigationObserver frame_observer(root);
   EXPECT_TRUE(ExecuteScript(root->child_at(0), script));
   frame_observer.Wait();
   EXPECT_EQ(b_url, root->current_url());
 
   // Verify that the same RenderViewHost is preserved and that it is no longer
   // in swapped out state.
   EXPECT_EQ(rvh, contents->GetFrameTree()->GetRenderViewHost(
                      root->current_frame_host()->GetSiteInstance()));
   EXPECT_FALSE(rvh->is_swapped_out_);
@@ skipping 1181 matching lines @@
       " Site A ------------ proxies for B C\n"
       "   +--Site B ------- proxies for A C\n"
       "        +--Site C -- proxies for A B\n"
       "Where A = http://a.com/\n"
       "      B = http://b.com/\n"
       "      C = http://c.com/",
       DepictFrameTree(root));
 }
 
 }  // namespace content