[headless] Remove default browser context.

headless/lib/headless_web_contents_browsertest.cc

 // Copyright 2016 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 <memory>
 #include <string>
 #include <vector>
 
 #include "content/public/test/browser_test.h"
 #include "headless/public/domains/page.h"
 #include "headless/public/headless_browser.h"
 #include "headless/public/headless_devtools_client.h"
 #include "headless/public/headless_web_contents.h"
 #include "headless/test/headless_browser_test.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/geometry/size.h"
 #include "url/gurl.h"
 
 namespace headless {
 
 class HeadlessWebContentsTest : public HeadlessBrowserTest {};
 
 IN_PROC_BROWSER_TEST_F(HeadlessWebContentsTest, Navigation) {
   EXPECT_TRUE(embedded_test_server()->Start());
 
+  std::unique_ptr<HeadlessBrowserContext> browser_context =
+      browser()->CreateBrowserContextBuilder().Build();
+
   HeadlessWebContents* web_contents =
-      browser()
-          ->CreateWebContentsBuilder()
+      browser_context->CreateWebContentsBuilder()
           .SetInitialURL(embedded_test_server()->GetURL("/hello.html"))
           .Build();
   EXPECT_TRUE(WaitForLoad(web_contents));
 
   std::vector<HeadlessWebContents*> all_web_contents =
       browser()->GetAllWebContents();
 
   EXPECT_EQ(static_cast<size_t>(1), all_web_contents.size());
   EXPECT_EQ(web_contents, all_web_contents[0]);
 }
 
 IN_PROC_BROWSER_TEST_F(HeadlessWebContentsTest, WindowOpen) {
   EXPECT_TRUE(embedded_test_server()->Start());
 
+  std::unique_ptr<HeadlessBrowserContext> browser_context =
+      browser()->CreateBrowserContextBuilder().Build();
+
   HeadlessWebContents* web_contents =
-      browser()
-          ->CreateWebContentsBuilder()
+      browser_context->CreateWebContentsBuilder()
           .SetInitialURL(embedded_test_server()->GetURL("/window_open.html"))
           .Build();
   EXPECT_TRUE(WaitForLoad(web_contents));
 
   std::vector<HeadlessWebContents*> all_web_contents =
       browser()->GetAllWebContents();
 
   EXPECT_EQ(static_cast<size_t>(2), all_web_contents.size());
 }
 
@@ skipping 10 matching lines @@
   void OnScreenshotCaptured(
       std::unique_ptr<page::CaptureScreenshotResult> result) {
     EXPECT_LT(0U, result->GetData().length());
     FinishAsynchronousTest();
   }
 };
 
 HEADLESS_ASYNC_DEVTOOLED_TEST_F(HeadlessWebContentsScreenshotTest);
 
 }  // namespace headless