Headless: make URLRequestDispatcher aware of navigations

headless/app/shell_navigation_request.cc

Index: headless/app/shell_navigation_request.cc
diff --git a/headless/app/shell_navigation_request.cc b/headless/app/shell_navigation_request.cc
new file mode 100644
index 0000000000000000000000000000000000000000..3c419bce8ec8800be86feec5ebd0ce7cc3a44b91
--- /dev/null
+++ b/headless/app/shell_navigation_request.cc
@@ -0,0 +1,43 @@
+// Copyright 2017 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 "headless/app/shell_navigation_request.h"
+
+#include "headless/app/headless_shell.h"
+
+namespace headless {
+
+ShellNavigationRequest::ShellNavigationRequest(
+    base::WeakPtr<HeadlessShell> headless_shell,
+    const page::NavigationRequestedParams& params)
+    : headless_shell_(headless_shell),
+      navigation_id_(params.GetNavigationId()) {}
+
+ShellNavigationRequest::~ShellNavigationRequest() {}
+
+void ShellNavigationRequest::StartProcessing(base::Closure done_callback) {
+  if (!headless_shell_)
+    return;
+
+  // Allow the navigation to proceed.
+  headless_shell_->devtools_client()
+      ->GetPage()
+      ->GetExperimental()
+      ->ProcessNavigation(
+          headless::page::ProcessNavigationParams::Builder()
+              .SetNavigationId(navigation_id_)
+              .SetResponse(headless::page::NavigationResponse::PROCEED)
+              .Build(),
+          base::Bind(&ShellNavigationRequest::ProcessNavigationResult,
+                     done_callback));
+}
+
+// static
+void ShellNavigationRequest::ProcessNavigationResult(
+    base::Closure done_callback,
+    std::unique_ptr<page::ProcessNavigationResult>) {
+  done_callback.Run();
+}
+
+}  // namespace headless