Whenever we set plain text on the standard clipboard, also set

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>
@@ skipping 195 matching lines @@
   // all clipboards, except on Windows. (Previous code leaks the IO thread
   // clipboard, so it shouldn't be a problem.)
   static void DestroyClipboardForCurrentThread();
 
   // Write a bunch of objects to the system clipboard. Copies are made of the
   // contents of |objects|. On Windows they are copied to the system clipboard.
   // On linux they are copied into a structure owned by the Clipboard object and
   // kept until the system clipboard is set again.
   void WriteObjects(Buffer buffer, const ObjectMap& objects);
 
-  // On Linux/BSD, we need to know when the clipboard is set to a URL.  Most
-  // platforms don't care.
-#if defined(OS_WIN) || defined(OS_MACOSX)             \
-    || (defined(USE_AURA) && defined(OS_CHROMEOS))    \
-    || defined(OS_ANDROID)
-  void DidWriteURL(const std::string& utf8_text) {}
-#else
-  void DidWriteURL(const std::string& utf8_text);
-#endif
-
   // Returns a sequence number which uniquely identifies clipboard state.
   // This can be used to version the data on the clipboard and determine
   // whether it has changed.
   uint64 GetSequenceNumber(Buffer buffer);
 
   // Tests whether the clipboard contains a certain format
   bool IsFormatAvailable(const FormatType& format, Buffer buffer) const;
 
   // Clear the clipboard data.
   void Clear(Buffer buffer);
@@ skipping 156 matching lines @@
   class AuraX11Details;
   scoped_ptr<AuraX11Details> aurax11_details_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(Clipboard);
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_CLIPBOARD_CLIPBOARD_H_