Adds better security checking to OnCreatedFrame()

components/html_viewer/html_frame_apptest.cc

 // Copyright 2015 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/auto_reset.h"
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
 #include "base/run_loop.h"
@@ skipping 191 matching lines @@
     bool got_callback = false;
     frame_connection->Init(
         application_impl(), BuildRequestForURL(url_string),
         base::Bind(&OnGotContentHandlerForRoot, &got_callback));
     ignore_result(ViewManagerTestBase::DoRunLoopWithTimeout());
     if (!got_callback)
       return nullptr;
     FrameConnection* result = frame_connection.get();
     FrameTreeClient* frame_tree_client = frame_connection->frame_tree_client();
     ViewTreeClientPtr tree_client = frame_connection->GetViewTreeClient();
-    frame_tree_.reset(new FrameTree(result->GetContentHandlerID(), view,
-                                    frame_tree_delegate_.get(),
-                                    frame_tree_client, frame_connection.Pass(),
-                                    Frame::ClientPropertyMap()));
+    frame_tree_.reset(
+        new FrameTree(result->GetContentHandlerID(), view, tree_client.Pass(),
+                      frame_tree_delegate_.get(), frame_tree_client,
+                      frame_connection.Pass(), Frame::ClientPropertyMap()));
     frame_tree_delegate_->set_frame_tree(frame_tree_.get());
-    view->Embed(tree_client.Pass());
     return result;
   }
 
   bool WaitForNavigateFrame() {
     if (frame_tree_delegate_->waiting_for_navigate())
       return false;
 
     frame_tree_delegate_->clear_got_navigate();
     return frame_tree_delegate_->WaitForNavigateFrame();
   }
@@ skipping 242 matching lines @@
         script_value_as_list->GetString(0u, &message_in_child);
       }
     }
   } while (message_in_child != "hello from parent" &&
            base::TimeTicks::Now() - start_time <
                TestTimeouts::action_timeout());
   EXPECT_EQ("hello from parent", message_in_child);
 }
 
 }  // namespace mojo