clang/win: Fix a Wenum-compare warning and a few Wwritable-strings warnings.

content/shell/browser/shell_web_contents_view_delegate_win.cc

 // 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.
 
 #include "content/shell/browser/shell_web_contents_view_delegate.h"
 
 #include "base/command_line.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
@@ skipping 20 matching lines @@
   ShellContextMenuItemDeleteId,
   ShellContextMenuItemOpenLinkId,
   ShellContextMenuItemBackId,
   ShellContextMenuItemForwardId,
   ShellContextMenuItemReloadId,
   ShellContextMenuItemInspectId
 };
 
 void MakeContextMenuItem(HMENU menu,
                          int menu_index,
-                         LPTSTR text,
+                         LPCTSTR text,
                          UINT id,
                          bool enabled) {
   MENUITEMINFO mii = {0};
   mii.cbSize = sizeof(mii);
   mii.fMask = MIIM_FTYPE | MIIM_ID | MIIM_DATA | MIIM_STRING | MIIM_STATE;
   mii.fState = enabled ? MFS_ENABLED : (MF_DISABLED | MFS_GRAYED);
   mii.fType = MFT_STRING;
   mii.wID = id;
-  mii.dwTypeData = text;
+  mii.dwTypeData = const_cast<LPTSTR>(text);
 
   InsertMenuItem(menu, menu_index, TRUE, &mii);
 }
 
 }  // namespace
 
 namespace content {
 
 WebContentsViewDelegate* CreateShellWebContentsViewDelegate(
     WebContents* web_contents) {
@@ skipping 185 matching lines @@
   return false;
 }
 
 void ShellWebContentsViewDelegate::TakeFocus(bool reverse) {
 }
 
 void ShellWebContentsViewDelegate::SizeChanged(const gfx::Size& size) {
 }
 
 }  // namespace content