Fix accelerators in avatar gaia webview on mac

chrome/browser/ui/webui/signin/inline_login_handler_impl.h

 // Copyright 2013 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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_SIGNIN_INLINE_LOGIN_HANDLER_IMPL_H_
 #define CHROME_BROWSER_UI_WEBUI_SIGNIN_INLINE_LOGIN_HANDLER_IMPL_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/ui/sync/one_click_signin_sync_starter.h"
 #include "chrome/browser/ui/webui/signin/inline_login_handler.h"
-#include "content/public/browser/web_contents_delegate.h"
 
 class GaiaAuthFetcher;
 
 // Implementation for the inline login WebUI handler on desktop Chrome. Once
 // CrOS migrates to the same webview approach as desktop Chrome, much of the
 // code in this class should move to its base class |InlineLoginHandler|.
 class InlineLoginHandlerImpl : public InlineLoginHandler,
-                               public content::WebContentsDelegate,
                                public content::WebContentsObserver {
  public:
   InlineLoginHandlerImpl();
   ~InlineLoginHandlerImpl() override;
 
   using InlineLoginHandler::web_ui;
 
   base::WeakPtr<InlineLoginHandlerImpl> GetWeakPtr() {
     return weak_factory_.GetWeakPtr();
   }
 
   Browser* GetDesktopBrowser();
   void SyncStarterCallback(OneClickSigninSyncStarter::SyncSetupResult result);
   // Closes the current tab and shows the account management view of the avatar
   // bubble if |show_account_management| is true.
   void CloseTab(bool show_account_management);
   void HandleLoginError(const std::string& error_msg);
 
  private:
   // InlineLoginHandler overrides:
   void SetExtraInitParams(base::DictionaryValue& params) override;
   void CompleteLogin(const base::ListValue* args) override;
 
-  // Overridden from content::WebContentsDelegate.
-  bool HandleContextMenu(const content::ContextMenuParams& params) override;
-
   // Overridden from content::WebContentsObserver overrides.
   void DidCommitProvisionalLoadForFrame(
       content::RenderFrameHost* render_frame_host,
       const GURL& url,
       ui::PageTransition transition_type) override;
 
   // True if the user has navigated to untrusted domains during the signin
   // process.
   bool confirm_untrusted_signin_;
 
   base::WeakPtrFactory<InlineLoginHandlerImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(InlineLoginHandlerImpl);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_SIGNIN_INLINE_LOGIN_HANDLER_IMPL_H_