Add full support for filesystem URLs.

chrome/renderer/extensions/user_script_slave.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 "chrome/renderer/extensions/user_script_slave.h"
 
 #include <map>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 66 matching lines @@
     int isolated_world_id) {
   for (IsolatedWorldMap::iterator iter = isolated_world_ids_.begin();
        iter != isolated_world_ids_.end(); ++iter) {
     if (iter->second == isolated_world_id)
       return iter->first;
   }
   return "";
 }
 
 // static
+// TODO(ericu): What needs to be done here?  Do filesystem URLs enter into
+// extension permissions at all?

[Aaron Boodman, 2012/01/19 23:47:37]

Nothing needs to be done here for now.

 void UserScriptSlave::InitializeIsolatedWorld(
     int isolated_world_id,
     const Extension* extension) {
   const URLPatternSet& permissions =
       extension->GetEffectiveHostPermissions();
   for (URLPatternSet::const_iterator i = permissions.begin();
        i != permissions.end(); ++i) {
     const char* schemes[] = {
       chrome::kHttpScheme,
       chrome::kHttpsScheme,
@@ skipping 238 matching lines @@
     if (num_scripts)
       UMA_HISTOGRAM_TIMES("Extensions.InjectEnd_Time", timer.Elapsed());
   } 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();
   }
 }