Implement forwarding of search queries for metro mode

base/win/metro.h

 // 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 BASE_WIN_METRO_H_
 #define BASE_WIN_METRO_H_
 
 #include <windows.h>
 #include <wpcapi.h>
 
 #include "base/base_export.h"
 #include "base/string16.h"
 
 namespace base {
 namespace win {
 
 // Identifies the type of the metro launch.
 enum MetroLaunchType {
-  LAUNCH,
-  SEARCH,
-  SHARE,
-  FILE,
-  PROTOCOL,
-  LASTLAUNCHTYPE,
+  METRO_LAUNCH,
+  METRO_SEARCH,
+  METRO_SHARE,
+  METRO_FILE,
+  METRO_PROTOCOL,
+  METRO_LAUNCH_ERROR,
+  METRO_LASTLAUNCHTYPE,
 };
 
 // In metro mode, this enum identifies the last execution state, i.e. whether
 // we crashed, terminated, etc.
 enum MetroPreviousExecutionState {
   NOTRUNNING,
   RUNNING,
   SUSPENDED,
   TERMINATED,
   CLOSEDBYUSER,
@@ skipping 29 matching lines @@
 BASE_EXPORT wchar_t* LocalAllocAndCopyString(const string16& src);
 
 // Returns true if the screen supports touch.
 BASE_EXPORT bool IsTouchEnabled();
 
 // Returns true if Windows Parental control activity logging is enabled. This
 // feature is available on Windows Vista and beyond.
 // This function should ideally be called on the UI thread.
 BASE_EXPORT bool IsParentalControlActivityLoggingOn();
 
+// Returns the type of launch and the activation params. For example if the
+// the launch is for METRO_PROTOCOL then the params is a url.
+BASE_EXPORT MetroLaunchType GetMetroLaunchParams(string16* params);
+
 // Handler function for the buttons on a metro dialog box
 typedef void (*MetroDialogButtonPressedHandler)();
 
 // Function to display metro style notifications.
 typedef void (*MetroNotification)(const char* origin_url,
                                   const char* icon_url,
                                   const wchar_t* title,
                                   const wchar_t* body,
                                   const wchar_t* display_source,
                                   const char* notification_id);
 
 
 }  // namespace win
 }  // namespace base
 
 #endif  // BASE_WIN_METRO_H_