Fix a crash in PageActionImageView when extensions are reloaded due to incognito settings changing.

chrome/test/base/testing_profile.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/test/base/testing_profile.h"
 
 #include "build/build_config.h"
 
 #include "base/base_paths.h"
 #include "base/command_line.h"
@@ skipping 326 matching lines @@
       this, BuildTemplateURLService);
 }
 
 ExtensionService* TestingProfile::CreateExtensionService(
     const CommandLine* command_line,
     const FilePath& install_directory,
     bool autoupdate_enabled) {
   // Extension pref store, created for use by |extension_prefs_|.
 
   extension_pref_value_map_.reset(new ExtensionPrefValueMap);
+  extension_process_manager_.reset(ExtensionProcessManager::Create(this));

[Matt Perry, 2011/10/27 18:05:28]

we might not want to do this all the time. i think it will spawn extension
processes every time an extension is loaded. consider moving it to a separate
Create helper and only call it from the tests that need it.

 
   bool extensions_disabled =
       command_line && command_line->HasSwitch(switches::kDisableExtensions);
 
   // Note that the GetPrefs() creates a TestingPrefService, therefore
   // the extension controlled pref values set in extension_prefs_
   // are not reflected in the pref service. One would need to
   // inject a new ExtensionPrefStore(extension_pref_value_map_.get(), false).
   extension_prefs_.reset(
       new ExtensionPrefs(GetPrefs(),
@@ skipping 76 matching lines @@
 
 UserScriptMaster* TestingProfile::GetUserScriptMaster() {
   return NULL;
 }
 
 ExtensionDevToolsManager* TestingProfile::GetExtensionDevToolsManager() {
   return NULL;
 }
 
 ExtensionProcessManager* TestingProfile::GetExtensionProcessManager() {
-  return NULL;
+  return extension_process_manager_.get();
 }
 
 ExtensionMessageService* TestingProfile::GetExtensionMessageService() {
   return NULL;
 }
 
 ExtensionEventRouter* TestingProfile::GetExtensionEventRouter() {
   return NULL;
 }
 
@@ skipping 334 matching lines @@
 quota::SpecialStoragePolicy* TestingProfile::GetSpecialStoragePolicy() {
   return GetExtensionSpecialStoragePolicy();
 }
 
 void TestingProfile::DestroyWebDataService() {
   if (!web_data_service_.get())
     return;
 
   web_data_service_->Shutdown();
 }