Add commands to manage tabs and contexts to Browser Domain

content/browser/devtools/protocol/devtools_protocol_browsertest.cc

 // Copyright 2013 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 <stddef.h>
 #include <utility>
 
 #include "base/base64.h"
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
@@ skipping 566 matching lines @@
   TestJavaScriptDialogManager dialog_manager;
   shell()->web_contents()->SetDelegate(&dialog_manager);
   SendCommand("Page.enable", nullptr, true);
   std::unique_ptr<base::DictionaryValue> params(new base::DictionaryValue());
   params->SetString("expression", "alert('alert')");
   SendCommand("Runtime.evaluate", std::move(params), false);
   WaitForNotification("Page.javascriptDialogOpening");
   dialog_manager.Handle();
 }
 
+IN_PROC_BROWSER_TEST_F(DevToolsProtocolTest, BrowserNewPage) {
+  NavigateToURLBlockUntilNavigationsComplete(shell(), GURL("about:blank"), 1);
+  Attach();
+  EXPECT_EQ(1u, shell()->windows().size());
+  std::unique_ptr<base::DictionaryValue> params(new base::DictionaryValue());
+  params->SetString("initialUrl", "about:blank");
+  SendCommand("Browser.newPage", std::move(params), true);
+  EXPECT_EQ(2u, shell()->windows().size());
+}
+
 }  // namespace content