Reserve an isolated world ID for Chrome Translate

chrome/renderer/extensions/user_script_slave.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/renderer/extensions/user_script_slave.h"
 
 #include <map>
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/perftimer.h"
 #include "base/pickle.h"
 #include "base/shared_memory.h"
 #include "base/stringprintf.h"
 #include "chrome/common/extensions/csp_handler.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_messages.h"
 #include "chrome/common/extensions/extension_set.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/renderer/chrome_render_process_observer.h"
 #include "chrome/renderer/extensions/dom_activity_logger.h"
 #include "chrome/renderer/extensions/extension_groups.h"
+#include "chrome/renderer/isolated_world_ids.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/public/renderer/render_view.h"
 #include "googleurl/src/gurl.h"
 #include "grit/renderer_resources.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebURLRequest.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebVector.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDataSource.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSecurityOrigin.h"
@@ skipping 11 matching lines @@
 
 namespace extensions {
 
 // These two strings are injected before and after the Greasemonkey API and
 // user script to wrap it in an anonymous scope.
 static const char kUserScriptHead[] = "(function (unsafeWindow) {\n";
 static const char kUserScriptTail[] = "\n})(window);";
 
 int UserScriptSlave::GetIsolatedWorldIdForExtension(const Extension* extension,
                                                     WebFrame* frame) {
-  static int g_next_isolated_world_id = 1;
+  static int g_next_isolated_world_id = chrome::ISOLATED_WORLD_ID_EXTENSIONS;
 
   IsolatedWorldMap::iterator iter = isolated_world_ids_.find(extension->id());
   if (iter != isolated_world_ids_.end()) {
     // We need to set the isolated world origin and CSP even if it's not a new
     // world since these are stored per frame, and we might not have used this
     // isolated world in this frame before.
     frame->setIsolatedWorldSecurityOrigin(
         iter->second,
         WebSecurityOrigin::create(extension->url()));
     frame->setIsolatedWorldContentSecurityPolicy(
@@ skipping 311 matching lines @@
   } else if (location == UserScript::DOCUMENT_IDLE) {
     UMA_HISTOGRAM_COUNTS_100("Extensions.InjectIdle_ScriptCount", num_scripts);
     if (num_scripts)
       UMA_HISTOGRAM_TIMES("Extensions.InjectIdle_Time", timer.Elapsed());
   } else {
     NOTREACHED();
   }
 }
 
 }  // namespace extensions