Integrate the Windows 8 code into the Chromium tree.

win8/metro_driver/chrome_url_launch_handler.h

Index: win8/metro_driver/chrome_url_launch_handler.h
diff --git a/win8/metro_driver/chrome_url_launch_handler.h b/win8/metro_driver/chrome_url_launch_handler.h
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+// 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.
+
+#ifndef CHROME_BROWSER_UI_METRO_DRIVER_CHROME_URL_LAUNCH_HANDLER_H_
+#define CHROME_BROWSER_UI_METRO_DRIVER_CHROME_URL_LAUNCH_HANDLER_H_
+
+#include <string>
+#include <windows.applicationmodel.core.h>
+#include <Windows.applicationModel.search.h>
+#include <windows.ui.core.h>
+
+#include "winrt_utils.h"
+
+// This class handles the various flavors of URL launches in metro, i.e.
+// via the search charm, via a url being navigated from a metro app, etc.
+class ChromeUrlLaunchHandler {
+ public:
+  ChromeUrlLaunchHandler();
+  ~ChromeUrlLaunchHandler();
+
+  HRESULT Initialize();
+
+  // If metro chrome was launched due to a URL navigation/search request then
+  // the navigation should be done when the frame window is initialized. This
+  // function is called to complete the pending navigation when we receive a
+  // notification from chrome that the frame window is initialized.
+  void PerformPendingNavigation();
+
+  void Activate(winapp::Activation::IActivatedEventArgs* args);
+
+ private:
+  // Invoked when we receive search notifications in metro chrome.
+  template<class T> void HandleSearchRequest(T* args);
+
+  HRESULT OnQuerySubmitted(
+      winapp::Search::ISearchPane* search_pane,
+      winapp::Search::ISearchPaneQuerySubmittedEventArgs* args);
+
+  string16 GetUrlFromLaunchArgs(const string16& launch_args);
+
+  // Invoked when a url is navigated from a metro app or in the metro
+  // shelf.
+  void HandleProtocolLaunch(
+      winapp::Activation::IProtocolActivatedEventArgs* args);
+
+  // Invoked when the app is launched normally
+  void HandleLaunch(winapp::Activation::ILaunchActivatedEventArgs* args);
+
+  // Helper function to initiate a navigation or search request in chrome.
+  void InitiateNavigationOrSearchRequest(const wchar_t* url,
+                                         const wchar_t* search_string);
+
+  Microsoft::WRL::ComPtr<winapp::Search::ISearchPane> search_pane_;
+  EventRegistrationToken query_submitted_token_;
+};
+
+#endif  // CHROME_BROWSER_UI_METRO_DRIVER_CHROME_URL_LAUNCH_HANDLER_H_