We do not pass enums by conts references. This CL fixes style errors introduced

content/shell/shell_web_contents_view_delegate_win.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 "content/shell/shell_web_contents_view_delegate.h"
 
 #include "content/public/browser/devtools_http_handler.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host_view.h"
@@ skipping 52 matching lines @@
 ShellWebContentsViewDelegate::ShellWebContentsViewDelegate(
     WebContents* web_contents)
     : web_contents_(web_contents) {
 }
 
 ShellWebContentsViewDelegate::~ShellWebContentsViewDelegate() {
 }
 
 void ShellWebContentsViewDelegate::ShowContextMenu(
     const ContextMenuParams& params,
-    const ContextMenuSourceType& type) {
+    ContextMenuSourceType type) {
   params_ = params;
   bool has_link = !params_.unfiltered_link_url.is_empty();
   bool has_selection = !params_.selection_text.empty();
 
   HMENU menu = CreateMenu();
   HMENU sub_menu = CreatePopupMenu();
   AppendMenu(menu, MF_STRING | MF_POPUP, (UINT)sub_menu, L"");
 
   int index = 0;
   if (params_.media_type == WebContextMenuData::MediaTypeNone &&
@@ skipping 177 matching lines @@
 
 void ShellWebContentsViewDelegate::TakeFocus(bool reverse) {
   NOTIMPLEMENTED();
 }
 
 void ShellWebContentsViewDelegate::SizeChanged(const gfx::Size& size) {
   NOTIMPLEMENTED();
 }
 
 }  // namespace content