Remove clipboard argument from ScopedClipboardWriter constructor.

ui/views/controls/textfield/textfield.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/views/controls/textfield/textfield.h"
 
 #include <string>
 
 #include "base/debug/trace_event.h"
 #include "ui/accessibility/ax_view_state.h"
@@ skipping 598 matching lines @@
       }
       OnAfterUserAction();
     }
 
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
     if (event.IsOnlyMiddleMouseButton()) {
       if (GetRenderText()->IsPointInSelection(event.location())) {
         OnBeforeUserAction();
         ClearSelection();
         ui::ScopedClipboardWriter(
-            ui::Clipboard::GetForCurrentThread(),
             ui::CLIPBOARD_TYPE_SELECTION).WriteText(base::string16());
         OnAfterUserAction();
       } else if (!read_only()) {
         PasteSelectionClipboard(event);
       }
     }
 #endif
   }
 
   return true;
@@ skipping 1154 matching lines @@
         ui::TouchSelectionController::create(this));
   }
   if (touch_selection_controller_)
     touch_selection_controller_->SelectionChanged();
 }
 
 void Textfield::UpdateSelectionClipboard() const {
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
   if (performing_user_action_ && HasSelection()) {
     ui::ScopedClipboardWriter(
-        ui::Clipboard::GetForCurrentThread(),
         ui::CLIPBOARD_TYPE_SELECTION).WriteText(GetSelectedText());
     if (controller_)
       controller_->OnAfterCutOrCopy(ui::CLIPBOARD_TYPE_SELECTION);
   }
 #endif
 }
 
 void Textfield::PasteSelectionClipboard(const ui::MouseEvent& event) {
   DCHECK(event.IsOnlyMiddleMouseButton());
   DCHECK(!read_only());
@@ skipping 11 matching lines @@
       const size_t length = selection_clipboard_text.length();
       range = gfx::Range(range.start() + length, range.end() + length);
     }
     model_->MoveCursorTo(gfx::SelectionModel(range, affinity));
     UpdateAfterChange(true, true);
     OnAfterUserAction();
   }
 }
 
 }  // namespace views