Enable <webview>.executeScript outside of Apps and Extensions [1]

chrome/browser/extensions/api/tabs/tabs_api.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 "chrome/browser/extensions/api/tabs/tabs_api.h"
 
 #include <algorithm>
 #include <limits>
 #include <vector>
 
@@ skipping 1223 matching lines @@
             extension(),
             web_contents_->GetURL(),
             web_contents_->GetURL(),
             tab_id,
             process ? process->GetID() : -1,
             &error_)) {
       return false;
     }
 
     TabHelper::FromWebContents(web_contents_)->script_executor()->ExecuteScript(
+        HostID::EXTENSIONS,
         extension_id(),
         ScriptExecutor::JAVASCRIPT,
         url.GetContent(),
         ScriptExecutor::TOP_FRAME,
         ScriptExecutor::DONT_MATCH_ABOUT_BLANK,
         UserScript::DOCUMENT_IDLE,
         ScriptExecutor::MAIN_WORLD,
         ScriptExecutor::DEFAULT_PROCESS,
         GURL(),
         GURL(),
@@ skipping 470 matching lines @@
     Browser* browser = chrome_details_.GetCurrentBrowser();
     if (!browser)
       return false;
     content::WebContents* web_contents = NULL;
     if (!ExtensionTabUtil::GetDefaultTab(browser, &web_contents, &tab_id))
       return false;
   }
 
   execute_tab_id_ = tab_id;
   details_ = details.Pass();
+  set_host_id(make_scoped_ptr(new HostID(HostID::EXTENSIONS,
+                                         extension()->id())));
   return true;
 }
 
 bool ExecuteCodeInTabFunction::CanExecuteScriptOnPage() {
   content::WebContents* contents = NULL;
 
   // If |tab_id| is specified, look for the tab. Otherwise default to selected
   // tab in the current window.
   CHECK_GE(execute_tab_id_, 0);
   if (!GetTabById(execute_tab_id_,
@@ skipping 207 matching lines @@
   ZoomController::ZoomMode zoom_mode = zoom_controller->zoom_mode();
   api::tabs::ZoomSettings zoom_settings;
   ZoomModeToZoomSettings(zoom_mode, &zoom_settings);
 
   results_ = api::tabs::GetZoomSettings::Results::Create(zoom_settings);
   SendResponse(true);
   return true;
 }
 
 }  // namespace extensions