Eliminate faux-RTTI code from BrowserView.

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/trace_event/trace_event.h"
 #include "ui/accessibility/ax_view_state.h"
@@ skipping 791 matching lines @@
         CreateTouchSelectionControllerAndNotifyIt();
         touch_handles_hidden_due_to_scroll_ = false;
       }
       event->SetHandled();
       break;
     default:
       return;
   }
 }
 
+// This function is called by BrowserView to execute clipboard commands.
+bool Textfield::AcceleratorPressed(const ui::Accelerator& accelerator) {
+  ui::KeyEvent event(accelerator.type(), accelerator.key_code(),
+                     accelerator.modifiers());
+  ExecuteCommand(GetCommandForKeyEvent(event, HasSelection()));
+  return true;
+}
+
 void Textfield::AboutToRequestFocusFromTabTraversal(bool reverse) {
   SelectAll(false);
 }
 
 bool Textfield::SkipDefaultKeyEventProcessing(const ui::KeyEvent& event) {
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
   // Skip any accelerator handling that conflicts with custom keybindings.
   ui::TextEditKeyBindingsDelegateAuraLinux* delegate =
       ui::GetTextEditKeyBindingsDelegate();
   std::vector<ui::TextEditCommandAuraLinux> commands;
@@ skipping 1068 matching lines @@
     RequestFocus();
   model_->MoveCursorTo(mouse);
   if (!selection_clipboard_text.empty()) {
     model_->InsertText(selection_clipboard_text);
     UpdateAfterChange(true, true);
   }
   OnAfterUserAction();
 }
 
 }  // namespace views