Clear the clipboard closing Incognito window

ui/base/clipboard/clipboard.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 UI_BASE_CLIPBOARD_CLIPBOARD_H_
 #define UI_BASE_CLIPBOARD_CLIPBOARD_H_
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
+#include "base/observer_list.h"
 #include "base/process.h"
 #include "base/shared_memory.h"
 #include "base/string16.h"
 #include "base/threading/thread_checker.h"
 #include "base/threading/platform_thread.h"
 #include "ui/base/ui_export.h"
 
 #if defined(TOOLKIT_GTK)
 #include <gdk/gdk.h>
 #endif
@@ skipping 101 matching lines @@
   enum ObjectType {
     CBF_TEXT,
     CBF_HTML,
     CBF_RTF,
     CBF_BOOKMARK,
     CBF_FILES,
     CBF_WEBKIT,
     CBF_BITMAP,
     CBF_SMBITMAP,  // Bitmap from shared memory.
     CBF_DATA,  // Arbitrary block of bytes.
+    CBF_INCOGNITO_MARKER, // Signifies that data came from Incognito mode.
   };
 
   // ObjectMap is a map from ObjectType to associated data.
   // The data is organized differently for each ObjectType. The following
   // table summarizes what kind of data is stored for each key.
   // * indicates an optional argument.
   //
   // Key           Arguments    Type
   // -------------------------------------
   // CBF_TEXT      text         char array
@@ skipping 10 matching lines @@
   //                            The filenames are encoded in platform-specific
   //                            encoding.
   // CBF_WEBKIT    none         empty vector
   // CBF_BITMAP    pixels       byte array
   //               size         gfx::Size struct
   // CBF_SMBITMAP  shared_mem   A pointer to an unmapped base::SharedMemory
   //                            object containing the bitmap data.
   //               size         gfx::Size struct
   // CBF_DATA      format       char array
   //               data         byte array
+  // CBF_INCOGNITO_MARKER
+  //               data         byte array
   typedef std::vector<char> ObjectMapParam;
   typedef std::vector<ObjectMapParam> ObjectMapParams;
   typedef std::map<int /* ObjectType */, ObjectMapParams> ObjectMap;
 
   // Buffer designates which clipboard the action should be applied to.
   // Only platforms that use the X Window System support the selection
   // buffer.
   enum Buffer {
     BUFFER_STANDARD,
     BUFFER_SELECTION,
   };
 
+  class ClipboardObserver {
+   public:
+    // Called at the end of Clipboard::WriteObjects()
+    virtual void OnWriteObjects(Buffer buffer) = 0;
+   protected:
+    virtual ~ClipboardObserver() {}
+  };
+
+  void AddObserver(ClipboardObserver* obs) {
+    observer_list_.AddObserver(obs);
+  }
+
+  void RemoveObserver(ClipboardObserver* obs) {
+    observer_list_.RemoveObserver(obs);
+  }
+
   static bool IsValidBuffer(int32 buffer) {
     switch (buffer) {
       case BUFFER_STANDARD:
         return true;
 #if defined(USE_X11) && !defined(OS_CHROMEOS)
       case BUFFER_SELECTION:
         return true;
 #endif
     }
     return false;
@@ skipping 86 matching lines @@
   static const FormatType& GetFilenameWFormatType();
   static const FormatType& GetWebKitSmartPasteFormatType();
   // Win: MS HTML Format, Other: Generic HTML format
   static const FormatType& GetHtmlFormatType();
   static const FormatType& GetRtfFormatType();
   static const FormatType& GetBitmapFormatType();
   // TODO(raymes): Unify web custom data and pepper custom data:
   // crbug.com/158399.
   static const FormatType& GetWebCustomDataFormatType();
   static const FormatType& GetPepperCustomDataFormatType();
+  static const FormatType& GetIncognitoMarkerFormatType();
 
   // Embeds a pointer to a SharedMemory object pointed to by |bitmap_handle|
   // belonging to |process| into a shared bitmap [CBF_SMBITMAP] slot in
   // |objects|.  The pointer is deleted by DispatchObjects().
   //
   // On non-Windows platforms, |process| is ignored.
   static void ReplaceSharedMemHandle(ObjectMap* objects,
                                      base::SharedMemoryHandle bitmap_handle,
                                      base::ProcessHandle process);
 #if defined(OS_WIN)
   // Firefox text/html
   static const FormatType& GetTextHtmlFormatType();
   static const FormatType& GetCFHDropFormatType();
   static const FormatType& GetFileDescriptorFormatType();
   static const FormatType& GetFileContentFormatZeroType();
 #endif
 
  private:
   FRIEND_TEST_ALL_PREFIXES(ClipboardTest, SharedBitmapTest);
   FRIEND_TEST_ALL_PREFIXES(ClipboardTest, EmptyHTMLTest);
   friend class ClipboardTest;
 
   Clipboard();
   ~Clipboard();
 
   void DispatchObject(ObjectType type, const ObjectMapParams& params);
 
+  void WriteObjectsImpl(Buffer buffer, const ObjectMap& objects);
+
   void WriteText(const char* text_data, size_t text_len);
 
   void WriteHTML(const char* markup_data,
                  size_t markup_len,
                  const char* url_data,
                  size_t url_len);
 
   void WriteRTF(const char* rtf_data, size_t data_len);
 
   void WriteBookmark(const char* title_data,
@@ skipping 55 matching lines @@
   TargetMap* clipboard_data_;
   GtkClipboard* clipboard_;
   GtkClipboard* primary_selection_;
 #elif defined(USE_AURA) && defined(USE_X11) && !defined(OS_CHROMEOS)
  private:
   // We keep our implementation details private because otherwise we bring in
   // the X11 headers and break chrome compile.
   class AuraX11Details;
   scoped_ptr<AuraX11Details> aurax11_details_;
 #endif
+  ObserverList<ClipboardObserver> observer_list_;
 
   DISALLOW_COPY_AND_ASSIGN(Clipboard);
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_CLIPBOARD_CLIPBOARD_H_