Don't show "Inspect Element" in the context menu if we can't inspect.

chrome/browser/tab_contents/render_view_context_menu.cc

 // Copyright (c) 2006-2009 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 "chrome/browser/tab_contents/render_view_context_menu.h"
 
 #include "app/l10n_util.h"
 #include "base/clipboard.h"
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 64 matching lines @@
   }
 
   if (node_type.type & ContextNodeType::EDITABLE)
     AppendEditableItems();
   else if (node_type.type & ContextNodeType::SELECTION ||
            node_type.type & ContextNodeType::LINK)
     AppendCopyItem();
 
   if (node_type.type & ContextNodeType::SELECTION)
     AppendSearchProvider();
-  AppendSeparator();
+
   AppendDeveloperItems();
 }
 
 void RenderViewContextMenu::AppendDeveloperItems() {
-  AppendMenuItem(IDS_CONTENT_CONTEXT_INSPECTELEMENT);
+  if (g_browser_process->have_inspector_files()) {
+    AppendSeparator();
+    AppendMenuItem(IDS_CONTENT_CONTEXT_INSPECTELEMENT);
+  }
 }
 
 void RenderViewContextMenu::AppendLinkItems() {
   AppendMenuItem(IDS_CONTENT_CONTEXT_OPENLINKNEWTAB);
   AppendMenuItem(IDS_CONTENT_CONTEXT_OPENLINKNEWWINDOW);
   AppendMenuItem(IDS_CONTENT_CONTEXT_OPENLINKOFFTHERECORD);
   AppendMenuItem(IDS_CONTENT_CONTEXT_SAVELINKAS);
 
   if (params_.link_url.SchemeIs(chrome::kMailToScheme)) {
     AppendMenuItem(IDS_CONTENT_CONTEXT_COPYLINKLOCATION,
@@ skipping 672 matching lines @@
   WriteTextToClipboard(UTF8ToUTF16(utf8_text));
   DidWriteURLToClipboard(utf8_text);
 }
 
 void RenderViewContextMenu::MediaPlayerActionAt(
     int x,
     int y,
     const MediaPlayerAction& action) {
   source_tab_contents_->render_view_host()->MediaPlayerActionAt(x, y, action);
 }