Fix accelerators in avatar gaia webview on mac

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

Index: chrome/browser/ui/webui/signin/inline_login_handler_impl.h
diff --git a/chrome/browser/ui/webui/signin/inline_login_handler_impl.h b/chrome/browser/ui/webui/signin/inline_login_handler_impl.h
index 64ff534efe846a42165b784432b6b7280048a2da..4214cb7d25027f85b17ea5f8114047b2ca680004 100644
--- a/chrome/browser/ui/webui/signin/inline_login_handler_impl.h
+++ b/chrome/browser/ui/webui/signin/inline_login_handler_impl.h
@@ -11,7 +11,6 @@
 #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;
 
@@ -19,7 +18,6 @@ class GaiaAuthFetcher;
 // 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();
@@ -43,9 +41,6 @@ class InlineLoginHandlerImpl : public InlineLoginHandler,
   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,