Automated test for dragging between same-page, cross-site frames.

content/public/test/browser_test_utils.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/public/test/browser_test_utils.h"
 
 #include <stddef.h>
 #include <tuple>
 #include <utility>
 
@@ skipping 1309 matching lines @@
 }
 
 bool DOMMessageQueue::WaitForMessage(std::string* message) {
   DCHECK(message);
   if (message_queue_.empty()) {
     // This will be quit when a new message comes in.
     message_loop_runner_ =
         new MessageLoopRunner(MessageLoopRunner::QuitMode::IMMEDIATE);
     message_loop_runner_->Run();
   }
-  // The queue should not be empty, unless we were quit because of a timeout.
+  return PopMessage(message);
+}
+
+bool DOMMessageQueue::PopMessage(std::string* message) {
+  DCHECK(message);
   if (message_queue_.empty())
     return false;
   *message = message_queue_.front();
   message_queue_.pop();
   return true;
 }
 
 class WebContentsAddedObserver::RenderViewCreatedObserver
     : public WebContentsObserver {
  public:
@@ skipping 496 matching lines @@
   IPC::IpcSecurityTestUtil::PwnMessageReceived(
       process->GetChannel(),
       FileSystemHostMsg_Write(request_id, file_path, blob_uuid, position));
 
   // If this started an async operation, wait for it to complete.
   if (waiter.did_start_update())
     waiter.WaitForEndUpdate();
 }
 
 }  // namespace content