Browser changes for wiring up RequestContentScript API to shared memory

chrome/browser/extensions/test_extension_system.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/test_extension_system.h"
 
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/extensions/blacklist.h"
+#include "chrome/browser/extensions/declarative_user_script_master.h"
 #include "chrome/browser/extensions/error_console/error_console.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/install_verifier.h"
 #include "chrome/browser/extensions/shared_module_service.h"
 #include "chrome/browser/extensions/standard_management_policy_provider.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_switches.h"
 #include "content/public/browser/browser_thread.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/extension_pref_value_map.h"
@@ skipping 169 matching lines @@
 
 scoped_ptr<ExtensionSet> TestExtensionSystem::GetDependentExtensions(
     const Extension* extension) {
   return extension_service()->shared_module_service()->GetDependentExtensions(
       extension);
 }
 
 DeclarativeUserScriptMaster*
 TestExtensionSystem::GetDeclarativeUserScriptMasterByExtension(
     const ExtensionId& extension_id) {
-  return NULL;
+  DCHECK(ready().is_signaled());
+  DeclarativeUserScriptMaster* master = NULL;
+  for (ScopedVector<DeclarativeUserScriptMaster>::iterator it =
+           declarative_user_script_masters_.begin();
+       it != declarative_user_script_masters_.end();
+       ++it) {
+    if ((*it)->extension_id() == extension_id) {
+      master = *it;
+      break;
+    }
+  }
+  if (!master) {
+    master = new DeclarativeUserScriptMaster(profile_, extension_id);
+    declarative_user_script_masters_.push_back(master);
+  }
+  return master;
 }
 
 // static
 KeyedService* TestExtensionSystem::Build(content::BrowserContext* profile) {
   return new TestExtensionSystem(static_cast<Profile*>(profile));
 }
 
 }  // namespace extensions