Remove remoting::Clipboard::Stop().

remoting/host/clipboard_mac.mm

 // 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 "remoting/host/clipboard.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/basictypes.h"
 #include "base/logging.h"
@@ skipping 15 matching lines @@
 namespace remoting {
 
 class ClipboardMac : public Clipboard {
  public:
   ClipboardMac();
   ~ClipboardMac() override;
 
   // Must be called on the UI thread.
   void Start(scoped_ptr<protocol::ClipboardStub> client_clipboard) override;
   void InjectClipboardEvent(const protocol::ClipboardEvent& event) override;
-  void Stop() override;
 
  private:
   void CheckClipboardForChanges();
 
   scoped_ptr<protocol::ClipboardStub> client_clipboard_;
   scoped_ptr<base::RepeatingTimer<ClipboardMac> > clipboard_polling_timer_;
   NSInteger current_change_count_;
 
   DISALLOW_COPY_AND_ASSIGN(ClipboardMac);
 };
@@ skipping 36 matching lines @@
   NSPasteboard* pasteboard = [NSPasteboard generalPasteboard];
   [pasteboard declareTypes:[NSArray arrayWithObject:NSStringPboardType]
                      owner:nil];
   [pasteboard setString:text forType:NSStringPboardType];
 
   // Update local change-count to prevent this change from being picked up by
   // CheckClipboardForChanges.
   current_change_count_ = [[NSPasteboard generalPasteboard] changeCount];
 }
 
-void ClipboardMac::Stop() {
-  clipboard_polling_timer_.reset();
-  client_clipboard_.reset();
-}
-
 void ClipboardMac::CheckClipboardForChanges() {
   NSPasteboard* pasteboard = [NSPasteboard generalPasteboard];
   NSInteger change_count = [pasteboard changeCount];
   if (change_count == current_change_count_) {
     return;
   }
   current_change_count_ = change_count;
 
   NSString* data = [pasteboard stringForType:NSStringPboardType];
   if (data == nil) {
     return;
   }
 
   protocol::ClipboardEvent event;
   event.set_mime_type(kMimeTypeTextUtf8);
   event.set_data(base::SysNSStringToUTF8(data));
   client_clipboard_->InjectClipboardEvent(event);
 }
 
 scoped_ptr<Clipboard> Clipboard::Create() {
   return make_scoped_ptr(new ClipboardMac());
 }
 
 }  // namespace remoting