Remove clipboard argument from ScopedClipboardWriter constructor.

ui/views/controls/textfield/textfield_model.cc

 // Copyright 2014 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_model.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/stl_util.h"
@@ skipping 467 matching lines @@
     current_edit_ ++;
   base::string16 old = text();
   size_t old_cursor = GetCursorPosition();
   (*current_edit_)->Redo(this);
   return old != text() || old_cursor != GetCursorPosition();
 }
 
 bool TextfieldModel::Cut() {
   if (!HasCompositionText() && HasSelection() && !render_text_->obscured()) {
     ui::ScopedClipboardWriter(
-        ui::Clipboard::GetForCurrentThread(),
         ui::CLIPBOARD_TYPE_COPY_PASTE).WriteText(GetSelectedText());
     // A trick to let undo/redo handle cursor correctly.
     // Undoing CUT moves the cursor to the end of the change rather
     // than beginning, unlike Delete/Backspace.
     // TODO(oshima): Change Delete/Backspace to use DeleteSelection,
     // update DeleteEdit and remove this trick.
     const gfx::Range& selection = render_text_->selection();
     render_text_->SelectRange(gfx::Range(selection.end(), selection.start()));
     DeleteSelection();
     return true;
   }
   return false;
 }
 
 bool TextfieldModel::Copy() {
   if (!HasCompositionText() && HasSelection() && !render_text_->obscured()) {
     ui::ScopedClipboardWriter(
-        ui::Clipboard::GetForCurrentThread(),
         ui::CLIPBOARD_TYPE_COPY_PASTE).WriteText(GetSelectedText());
     return true;
   }
   return false;
 }
 
 bool TextfieldModel::Paste() {
   base::string16 result;
   ui::Clipboard::GetForCurrentThread()->ReadText(ui::CLIPBOARD_TYPE_COPY_PASTE,
                                                  &result);
@@ skipping 245 matching lines @@
   ClearComposition();
   if (delete_from != delete_to)
     render_text_->SetText(old_text.erase(delete_from, delete_to - delete_from));
   if (!new_text.empty())
     render_text_->SetText(old_text.insert(new_text_insert_at, new_text));
   render_text_->SetCursorPosition(new_cursor_pos);
   // TODO(oshima): Select text that was just undone, like Mac (but not GTK).
 }
 
 }  // namespace views