Add per-tab "JavaScript enabled" preference.

chrome/browser/tab_contents/render_view_context_menu.cc

 // Copyright (c) 2011 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 <algorithm>
 #include <set>
 #include <utility>
 
 #include "chrome/browser/tab_contents/render_view_context_menu.h"
 
@@ skipping 1790 matching lines @@
     view->ShowingContextMenu(false);
   RenderViewHost* rvh = source_tab_contents_->render_view_host();
   if (rvh) {
     rvh->NotifyContextMenuClosed(params_.custom_context);
   }
 }
 
 bool RenderViewContextMenu::IsDevCommandEnabled(int id) const {
   if (id == IDC_CONTENT_CONTEXT_INSPECTELEMENT) {
     const CommandLine& command_line = *CommandLine::ForCurrentProcess();
+    TabContentsWrapper* tab_contents_wrapper =
+        TabContentsWrapper::GetCurrentWrapperForContents(
+            source_tab_contents_);
+    if (!tab_contents_wrapper)
+      return false;
     // Don't enable the web inspector if JavaScript is disabled.
-    if (!profile_->GetPrefs()->GetBoolean(prefs::kWebKitJavascriptEnabled) ||
+    if (!tab_contents_wrapper->per_tab_prefs()->GetBoolean(
+            prefs::kWebKitJavascriptEnabled) ||
         command_line.HasSwitch(switches::kDisableJavaScript))
       return false;
     // Don't enable the web inspector if the developer tools are disabled via
     // the preference dev-tools-disabled.
     if (profile_->GetPrefs()->GetBoolean(prefs::kDevToolsDisabled))
       return false;
   }
 
   return true;
 }
@@ skipping 42 matching lines @@
       profile_->GetPrefs()->GetString(prefs::kAcceptLanguages),
       g_browser_process->clipboard());
 }
 
 void RenderViewContextMenu::MediaPlayerActionAt(
     const gfx::Point& location,
     const WebMediaPlayerAction& action) {
   source_tab_contents_->render_view_host()->
       ExecuteMediaPlayerActionAtLocation(location, action);
 }