Clear the clipboard closing Incognito window

ui/base/clipboard/clipboard.cc

 // 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.
 
 #include "ui/base/clipboard/clipboard.h"
 
 #include <iterator>
 
 #include "base/lazy_instance.h"
 #include "base/logging.h"
@@ skipping 135 matching lines @@
 
   ClipboardMap* clipboard_map = g_clipboard_map.Pointer();
   base::PlatformThreadId id = base::PlatformThread::CurrentId();
   ClipboardMap::iterator it = clipboard_map->find(id);
   if (it != clipboard_map->end()) {
     delete it->second;
     clipboard_map->erase(it);
   }
 }
 
+void Clipboard::WriteObjects(Buffer buffer, const ObjectMap& objects) {
+  WriteObjectsImpl(buffer, objects);
+  FOR_EACH_OBSERVER(ClipboardObserver, observer_list_, OnWriteObjects(buffer));
+}
+
 void Clipboard::DispatchObject(ObjectType type, const ObjectMapParams& params) {
   // All types apart from CBF_WEBKIT need at least 1 non-empty param.
   if (type != CBF_WEBKIT && (params.empty() || params[0].empty()))
     return;
   // Some other types need a non-empty 2nd param.
   if ((type == CBF_BOOKMARK || type == CBF_BITMAP ||
        type == CBF_SMBITMAP || type == CBF_DATA) &&
       (params.size() != 2 || params[1].empty()))
     return;
   switch (type) {
@@ skipping 55 matching lines @@
     }
 
     case CBF_DATA:
       WriteData(
           FormatType::Deserialize(
               std::string(&(params[0].front()), params[0].size())),
           &(params[1].front()),
           params[1].size());
       break;
 
+    case CBF_INCOGNITO_MARKER:
+#if defined(TOOLKIT_GTK)  // TODO(vasilii): support other platforms.
+      WriteData(GetIncognitoMarkerFormatType(),
+                &params[0].front(), params[0].size());
+#endif
+      break;
+
     default:
       NOTREACHED();
   }
 }
 
 // static
 void Clipboard::ReplaceSharedMemHandle(ObjectMap* objects,
                                        base::SharedMemoryHandle bitmap_handle,
                                        base::ProcessHandle process) {
   using base::SharedMemory;
@@ skipping 17 matching lines @@
       // UI thread (see DispatchObject()).
       iter->second[0].clear();
       for (size_t i = 0; i < sizeof(SharedMemory*); ++i)
         iter->second[0].push_back(reinterpret_cast<char*>(&bitmap)[i]);
       has_shared_bitmap = true;
     }
   }
 }
 
 }  // namespace ui