Only paste the fragment of text which was copied to the clipboard.

webkit/plugins/ppapi/ppb_flash_impl.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 "webkit/plugins/ppapi/ppb_flash_impl.h"
 
 #include <string>
 #include <vector>
 
 #include "base/message_loop.h"
@@ skipping 308 matching lines @@
               ui::Clipboard::GetPlainTextFormatType(), buffer_type)) {
         std::string text;
         clipboard_client_->ReadAsciiText(buffer_type, &text);
         if (!text.empty())
           return StringVar::StringToPPVar(text);
       }
 
       return PP_MakeNull();
     }
     case PP_FLASH_CLIPBOARD_FORMAT_HTML: {
-      string16 html_stdstr;
+      string16 html;
       GURL gurl;
       uint32 fragment_start;
       uint32 fragment_end;
       clipboard_client_->ReadHTML(buffer_type,
-                                  &html_stdstr,
+                                  &html,
                                   &gurl,
                                   &fragment_start,
                                   &fragment_end);
-      return StringVar::StringToPPVar(UTF16ToUTF8(html_stdstr));
+      return StringVar::StringToPPVar(UTF16ToUTF8(
+          html.substr(fragment_start, fragment_end - fragment_start)));
     }
     case PP_FLASH_CLIPBOARD_FORMAT_RTF: {
       std::string result;
       clipboard_client_->ReadRTF(buffer_type, &result);
       return ::ppapi::PpapiGlobals::Get()->GetVarTracker()->
           MakeArrayBufferPPVar(result.size(), result.data());
     }
     case PP_FLASH_CLIPBOARD_FORMAT_INVALID:
       break;
   }
@@ skipping 322 matching lines @@
     }
     case PP_FLASH_CLIPBOARD_FORMAT_INVALID:
       break;
   }
 
   return PP_ERROR_BADARGUMENT;
 }
 
 }  // namespace ppapi
 }  // namespace webkit